A pumping machine pumps water at a rate of \[60cc/s\]at a pressure of \[1.5\] atm. The Powered delivered by the machine is:
A)
9W
done
clear
B)
6W
done
clear
C)
9KW
done
clear
D)
None of these.
done
clear
View Answer play_arrow
Two discs have same mass and thickness. Their materials are of densities \[{{\rho }_{1}}\] and \[{{\rho }_{2}}\]. The ratio of other moment of inertia about central axis will be:
A)
\[{{\rho }_{1}}:{{\rho }_{2}}\]
done
clear
B)
\[{{\rho }_{1}}{{\rho }_{2}}:1\]
done
clear
C)
\[1:{{\rho }_{1}}{{\rho }_{2}}\]
done
clear
D)
\[{{\rho }_{2}}{{\rho }_{1}}\]
done
clear
View Answer play_arrow
A block with a speed of \[{{V}_{0}}=6m/s\] along a track from one level to higher level as shown. The track is frictionless untill the block reaches the higher level, where coefficient of friction is\[0.6\]. The distance d travelled by block on higher level before stopping is \[(g=10m/{{s}^{2}})\]:
A)
\[7/6m\]
done
clear
B)
\[5/6m\]
done
clear
C)
\[29/6m\]
done
clear
D)
\[3m\]
done
clear
View Answer play_arrow
A man A, mass 60kg and other man B mass 70kg are sitting at two extremes of 2m long boat of mass 70kg, standing still in water as shown in figure. They come to the middle of boat (Neglect friction). How far does the boat move on the water during the process?
A)
5cm leftward
done
clear
B)
5cm rightward
done
clear
C)
7cm leftward
done
clear
D)
7cm rightward
done
clear
View Answer play_arrow
A body of mass m is kept on a rough horizontal surface of friction coefficient \[\mu \]. A force is applied horizontally, but the body is not moving. The net force F by the surface on the body will be:
A)
\[F\le \mu mg\]
done
clear
B)
\[F=\mu mg\]
done
clear
C)
\[mg<F<mg\sqrt{1+{{\mu }^{2}}}\]
done
clear
D)
\[mg\ge F>mg\sqrt{1-{{\mu }^{2}}}\]
done
clear
View Answer play_arrow
The pulleys and string shown in the figure are smooth and of negligible mass. For the system to be under equilibrium, the angle \[\theta \] should be:
A)
\[{{0}^{o}}\]
done
clear
B)
\[{{30}^{o}}\]
done
clear
C)
\[{{45}^{o}}\]
done
clear
D)
\[{{60}^{o}}\]
done
clear
View Answer play_arrow
If a boat can have a speed of 4 km/h in still water for what value of speed of river flow, it can be managed to row boat right across the river, without any drift?
A)
\[\ge \,4km/h\]
done
clear
B)
Greater than zero but less than 4km/h
done
clear
C)
Only 4km/h
done
clear
D)
None of these
done
clear
View Answer play_arrow
A driver applies the break on seeing traffic signal 400m ahead. At the time of applying the brakes, vehicle was moving with \[15m{{s}^{-1}}\] and retarding with \[0.3m{{s}^{-2}}\]. The distance of vehicle after 1 min from the traffic light is:
A)
\[25\,m\]
done
clear
B)
\[375\,m\]
done
clear
C)
\[360\,m\]
done
clear
D)
\[40\,m\]
done
clear
View Answer play_arrow
The dimensional formula of magnetic flux is:
A)
\[[M{{L}^{2}}{{T}^{-2}}{{A}^{-1}}]\]
done
clear
B)
\[[M{{L}^{0}}{{T}^{-2}}{{A}^{-2}}]\]
done
clear
C)
\[[{{M}^{o}}{{L}^{-2}}{{T}^{-2}}{{A}^{-2}}]\]
done
clear
D)
\[[ML{{T}^{-1}}{{A}^{3}}]\]
done
clear
View Answer play_arrow
The least count of stopwatch is \[1/5s\]. The time of 20 ascillations of a pendulum is measured to be 25s. The minimum percentage error in the measurement of time will be
A)
\[0.1%\]
done
clear
B)
\[0.8%\]
done
clear
C)
\[1.8%\]
done
clear
D)
\[8%\]
done
clear
View Answer play_arrow
The time period of a spring mass system is T in air when the mass is partially immersed in water, the time period of oscillation is:
A)
T
done
clear
B)
\[<T\]
done
clear
C)
\[>T\]
done
clear
D)
\[\le T\]
done
clear
View Answer play_arrow
e time period of rotation of earth so as to make object weight-less on its equator is where M or r are the mass and radius of earth.
A)
84mm
done
clear
B)
74mm
done
clear
C)
64min
done
clear
D)
54min
done
clear
View Answer play_arrow
Vectors \[A=ai+aj+3k\] and \[B=ai-2j-k\] are perpendicular to each other, then the positive value of a is:
A)
3
done
clear
B)
2
done
clear
C)
1
done
clear
D)
0
done
clear
View Answer play_arrow
Two spherical black bodies have maximum emission corresponding to wavelength, which are in the ratio of \[2:3\] and their radii are in the ratio of \[4:9\]. Then ratio of their emissive powers will be (assume same emissivity of body)
A)
\[1:1\]
done
clear
B)
\[81/16\]
done
clear
C)
\[36/81\]
done
clear
D)
\[8/17\]
done
clear
View Answer play_arrow
An ideal gas is taken through cycle \[A\to B\to C\to A\]as shown in figure. If the net heat supplied to the gas is 10 J, then the work done by the gas in process \[B\to C\]is:
A)
\[-10J\]
done
clear
B)
\[-30J\]
done
clear
C)
\[-15J\]
done
clear
D)
\[20J\]
done
clear
View Answer play_arrow
A simple harmonic wave is represented by the equation \[y\,\,(x,t)\,\,{{a}_{0}}\,\,\sin \,2\pi \,\,\left( \upsilon t-\frac{x}{\lambda } \right)\]. If the maximum particle velocity is three times the wave velocity, the wavelength A, of the wave is:
A)
\[\frac{\pi {{a}_{0}}}{3}\]
done
clear
B)
\[\frac{2\pi {{a}_{0}}}{3}\]
done
clear
C)
\[\pi {{a}_{0}}\]
done
clear
D)
\[\frac{\pi {{a}_{0}}}{2}\]
done
clear
View Answer play_arrow
Transverse waves are generated in two uniform wire A and B of the same material by attaching their free ends to a vibrating source of frequency 200Hz. the cross section of A is half that of B while the tension on A is twice that on B. The ratio of wavelengths of the transverse waves in A and B is:
A)
\[1:\sqrt{2}\]
done
clear
B)
\[\sqrt{2}:1\]
done
clear
C)
\[1:2\]
done
clear
D)
\[2:1\]
done
clear
View Answer play_arrow
The potential energy of a particle of mass \[0.1kg,\]moving along X-axis is given by \[U=5X\,(X-4),\] here U is in joules and X is in m. Which of the following is incorrect?
A)
The particle is acted upon by a variable force.
done
clear
B)
The speed of particle is maximum at \[X=2m\].
done
clear
C)
The minimum potential energy during the motion is\[20J\].
done
clear
D)
The period of oscillation of the particle is \[\pi /5s\].
done
clear
View Answer play_arrow
A liquid film is formed over a frame ABCD as shown in figure. Wire CD (massless) can slide without friction. The mass to be hung from CD to keep it in equilibrium is (surface tension of liquid is T).
A)
\[T/g\]
done
clear
B)
\[2Tl/g\]
done
clear
C)
\[g/2Tl\]
done
clear
D)
\[TXl\]
done
clear
View Answer play_arrow
Two satellites A and B go round a planet P in circular orbits having radii 4R and R respectively. If the speed of the satellite A is 3V. The speed of the sattelite B will be:
A)
\[12\,V\]
done
clear
B)
\[6\,V\]
done
clear
C)
\[\frac{4\,V}{3}\]
done
clear
D)
\[\frac{3\,V}{2}\]
done
clear
View Answer play_arrow
Electromagnetic waves are produced by:
A)
Charges at rest only.
done
clear
B)
Charges in uniform motion only.
done
clear
C)
Accelerated or deaccelerated charges only.
done
clear
D)
All of these.
done
clear
View Answer play_arrow
In a pure silicon \[({{n}_{1}}={{10}^{16}}/{{m}^{3}})\] crystal at 300K, \[{{10}^{21}}\] atoms of phosphorus are added per cubic metre. The new hole concentration will be:
A)
\[{{10}^{21}}\,per\,\,{{m}^{3}}\]
done
clear
B)
\[{{10}^{19}}\,per\,\,{{m}^{3}}\]
done
clear
C)
\[{{10}^{11}}\,per\,\,{{m}^{3}}\]
done
clear
D)
\[{{10}^{5}}\,per\,\,{{m}^{3}}\]
done
clear
View Answer play_arrow
Which of the following gate will have an output of 1?
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
The electron emitted in beta radiation originates from:
A)
inner orbit of atoms
done
clear
B)
free electrons existing in nuclei
done
clear
C)
decay of neutrons in a nucleus
done
clear
D)
photon escaping from the nucleus
done
clear
View Answer play_arrow
In the X-rays tube before striking the target, we accelerate the electrons through a potential difference of V volt. For which of the following value of V, we will have X-rays of largest wavelength?
A)
\[10\,KV\]
done
clear
B)
\[20\,KV\]
done
clear
C)
\[30\,KV\]
done
clear
D)
\[40\,KV\]
done
clear
View Answer play_arrow
What is the ratio of circumfrence of the first Bohr orbit for the electron in the hydrogen atom to the de-broglie wavelength of electrons having the same velocity as the electron in first Bohr orbit of the hydrogen atom?
A)
\[1:1\]
done
clear
B)
\[1:2\]
done
clear
C)
\[1:4\]
done
clear
D)
\[2:1\]
done
clear
View Answer play_arrow
The circuit has two oppositely connected ideal diodes in parallel. What is the current flowing in the circuit?
A)
\[1.33A\]
done
clear
B)
\[1.71A\]
done
clear
C)
\[2.00A\]
done
clear
D)
\[2.31A\]
done
clear
View Answer play_arrow
The radioactivity of an element becomes \[\frac{1}{64}th\]of its original value in 60S. Then the half life period of element is:
A)
\[58\]
done
clear
B)
\[10\,S\]
done
clear
C)
\[20\,S.\]
done
clear
D)
\[30\,S.\]
done
clear
View Answer play_arrow
In Young's double slit experiment, the two slits acts as cohrent sources of equal amplitude A and wavelength X. In other experiment with some set-up the two slits are the source of equal amplitude A and wavelength \[\lambda ,\] but are in cohrent. The ratio of intensity of light at the midpoint of the screen in the first case to that is second case is:
A)
1
done
clear
B)
2
done
clear
C)
3
done
clear
D)
4
done
clear
View Answer play_arrow
A thin lens of refractive index \[1.5\] has a focal length of 15cm in air. When the lens is placed in a medium of refractive index (4/3), focal length will be now:
A)
\[30\,cm\]
done
clear
B)
\[60\,cm\]
done
clear
C)
\[-60\,cm\]
done
clear
D)
\[-30\,cm\]
done
clear
View Answer play_arrow
In the circuit shown \[E=10V,\] \[{{R}_{1}}=2\Omega ,\] \[{{R}_{2}}=3\Omega ,\]\[{{R}_{3}}=6\Omega ,\] and \[L=SH,\] the current \[{{I}_{1}},\] just after pressing the switch S is:
A)
\[(10/4)\,A\]
done
clear
B)
\[(10/5)\,A\]
done
clear
C)
\[(10/12)\,A\]
done
clear
D)
\[(10/6)\,A\]
done
clear
View Answer play_arrow
Calculate the rms value of emf, given by \[E=50\sqrt{2}\,\,\sin \,\,\left( \omega t-\frac{\pi }{4} \right):\]
A)
\[50V\]
done
clear
B)
\[5V\]
done
clear
C)
\[2\sqrt{5}V\]
done
clear
D)
None of these
done
clear
View Answer play_arrow
A coil of \[20\times 20cm\] having 30 turns is making 30rps in a magnetic field of 1 tesla. The peak value of induced emf is approximately:
A)
\[452\,V\]
done
clear
B)
\[226\,V\]
done
clear
C)
\[113\,V\]
done
clear
D)
\[339\,V\]
done
clear
View Answer play_arrow
A conducting loop carrying a current i is placed in a uniform magnetic field pointing into the plane as shown in figure. The loop will have tendency to:
A)
Contract
done
clear
B)
Expand
done
clear
C)
Move towards positive X-axis
done
clear
D)
Move towards negative X-axis
done
clear
View Answer play_arrow
Ratio of magnetic field at the centre of a current carrying coil of radius R and distance of 3R on its axis is:
A)
\[10\sqrt{10}\]
done
clear
B)
\[20\sqrt{10}\]
done
clear
C)
\[2\sqrt{10}\]
done
clear
D)
\[\sqrt{10}\]
done
clear
View Answer play_arrow
A particle of charge \[-16\times {{10}^{-18}}C\] moving with velocity \[10m/s\] along the X-axis enters a region where a magnetic field of induction B is along the Y-axis and an electric field of magnitude \[{{10}^{4}}\text{ }V/m\] is along the negative Z-axis. If the charged particle continues moving along the X-axis, the magnitude of B is along the Y-axis and electric field of magnitude \[{{10}^{4}}\text{ }V/m\] is along the negative Z-axis. If the charged particles continues moving along the X-axis, the magnitude of B is:
A)
\[{{10}^{3}}wb/{{m}^{2}}\]
done
clear
B)
\[{{10}^{5}}wb/{{m}^{2}}\]
done
clear
C)
\[{{10}^{16}}wb/{{m}^{2}}\]
done
clear
D)
\[{{10}^{-3}}wb/{{m}^{2}}\]
done
clear
View Answer play_arrow
The magnetic induction field at the centre C of the arrangement shown in figure is:
A)
\[\frac{{{\mu }_{0}}i}{4\pi r}\,(1+\pi )\]
done
clear
B)
\[\frac{{{\mu }_{0}}i}{2\pi r}\,(1+\pi )\]
done
clear
C)
\[\frac{{{\mu }_{0}}i}{\pi r}\,(1+\pi )\]
done
clear
D)
\[\frac{{{\mu }_{0}}i}{r}\,(1+\pi )\]
done
clear
View Answer play_arrow
A heater coil is cut into two equal parts and only one part is now used in heater. The heat generated will now be (assuming potential difference is same in both cases):
A)
one fourth
done
clear
B)
halved
done
clear
C)
doubled
done
clear
D)
four times
done
clear
View Answer play_arrow
The current i drawn from the 5V source will be:
A)
\[0.33\,A\]
done
clear
B)
\[0.5\,A\]
done
clear
C)
\[0.67\,A\]
done
clear
D)
\[0.17\,A\]
done
clear
View Answer play_arrow
A conductor with rectangular cross-section has dimensions \[(a\times 2a\times 4a)\] as shown in figure: Resistance across AB is X, across CD is Y and across EF is Z, then:
A)
\[X=Y=Z\]
done
clear
B)
\[Y>Z>X\]
done
clear
C)
\[X>Y>Z\]
done
clear
D)
\[X>Z>Y\]
done
clear
View Answer play_arrow
An ammeter reads up to 1A. Its internal resistance is \[0.81\Omega \]. To increase the range to 10A, the value of the required shunt is:
A)
\[0.03\Omega \]
done
clear
B)
\[0.3\Omega \]
done
clear
C)
\[0.9\Omega \]
done
clear
D)
\[0.09\Omega \]
done
clear
View Answer play_arrow
In the circuit shown, a potential difference of \[60V\]is applied across AB. The potential difference between the points M and N is:
A)
\[10\,V\]
done
clear
B)
\[15\,V\]
done
clear
C)
\[20\,V\]
done
clear
D)
\[30\,V\]
done
clear
View Answer play_arrow
ABC is an equilateral triangle, charges \[+q\] are placed at each corner. The electric field intensity at centroid O will be:
A)
\[\frac{1}{2\pi {{\varepsilon }_{0}}}\times \frac{q}{{{r}^{2}}}\]
done
clear
B)
\[\frac{1}{2\pi {{\varepsilon }_{0}}}\times \frac{3q}{{{r}^{2}}}\]
done
clear
C)
\[\frac{1}{2\pi {{\varepsilon }_{0}}}\times \frac{\sqrt{3q}}{{{r}^{2}}}\]
done
clear
D)
zero
done
clear
View Answer play_arrow
The electric potential V is gives as a function of distance X (metre) as \[X=(5{{x}^{2}}+10X-9)V\]. The magnitude of electric field at \[X=1\] is:
A)
\[220V/W\]
done
clear
B)
\[6V/W\]
done
clear
C)
\[11V/m\]
done
clear
D)
\[-23V/m\]
done
clear
View Answer play_arrow
Two spherical conductors A and B of radii 1mm and 2mm are separated by a distance of 5cm and are uniformly charged. If, the spheres are connected by a conducting wire then, in equilibrium condition the ratio of the magnitude of the electric fields at the surface of spheres A and B is:
A)
\[1:4\]
done
clear
B)
\[4:1\]
done
clear
C)
\[1:2\]
done
clear
D)
\[2:1\]
done
clear
View Answer play_arrow
\[CuS{{O}_{4}}\] is commercially made from Cu scrap by:
A)
dissolving it in hot cone. \[{{H}_{2}}S{{O}_{4}}\]
done
clear
B)
spraying warm dilute \[{{H}_{2}}S{{O}_{4}}\] on it in the presence of air
done
clear
C)
heating with sodium sulphate
done
clear
D)
heating with sulphur.
done
clear
View Answer play_arrow
Of the species \[H_{2}^{+},He_{2}^{+}\] and \[O_{2}^{+}\] all are:
A)
diamagnetic
done
clear
B)
paramagnetic
done
clear
C)
stable
done
clear
D)
unstable
done
clear
View Answer play_arrow
Which of the following is not an ore of silver?
A)
Argentite
done
clear
B)
Pyrargyrite
done
clear
C)
Horn silver
done
clear
D)
Azurite
done
clear
View Answer play_arrow
Identify the correct statement in respect of an element in a particular period of the periodic table?
A)
A decrease in nuclear charge causes an increase in ionisation energy
done
clear
B)
An increase in nuclear charge causes an increase in ionisation energy
done
clear
C)
A decrease in atomic size decreases the ionisation energy
done
clear
D)
An increase in the number of valence electrons decreases the ionisation energy
done
clear
View Answer play_arrow
In third group iron gives blood red colouration with ammonium thiocyanate due to the formation of which compound?
A)
Ferric cyanide
done
clear
B)
Ferric thiocyanate
done
clear
C)
Ferric thiocyanate ion
done
clear
D)
Ferric thiocyanide
done
clear
View Answer play_arrow
Ammonia can be dried by
A)
cone. \[{{H}_{2}}S{{O}_{4}}\]
done
clear
B)
\[{{P}_{2}}{{O}_{5}}\]
done
clear
C)
anhydrous \[CaC{{l}_{2}}\]
done
clear
D)
none of these
done
clear
View Answer play_arrow
Identify the statement which is not correct.
A)
\[CuS{{O}_{4}}\] reacts with \[KI\] in aqueous solution to give \[C{{u}_{2}}{{I}_{2}}\]
done
clear
B)
\[CuS{{O}_{4}}\] reacts with \[KCl\] in aqueous solution to give \[C{{u}_{2}}C{{l}_{2}}\]
done
clear
C)
\[CuS{{O}_{4}}\] reacts with \[NaOH\] and glucose in aqueous medium to give \[C{{u}_{2}}O\]
done
clear
D)
\[CuS{{O}_{4}}\] on strong heating gives \[CuO\]
done
clear
View Answer play_arrow
A mixture of two salts is not soluble in water but dissolves completely in dilute hydrochloric acid to form a colourless solution. The mixture could be
A)
\[AgN{{O}_{3}}\] and \[KBr\]
done
clear
B)
\[BaC{{O}_{3}}\] and \[ZnS\]
done
clear
C)
\[FeC{{l}_{3}}\] and \[CaC{{O}_{3}}\]
done
clear
D)
\[Mn{{(N{{O}_{3}})}_{2}}\] and \[MgS{{O}_{4}}\]
done
clear
View Answer play_arrow
The correct IUPAC name for the compound
A)
l-bromo-4-hydroxy pentanal
done
clear
B)
2-bromo-5-hydroxy-l-hexanal
done
clear
C)
2-hydroxy-5-bromo-6-hexanal
done
clear
D)
2-hydroxy-5-bromo-5-pentanal
done
clear
View Answer play_arrow
Which one of the following values could be used to estimate the strength of a hydrogen bond in water?
A)
Strength of an \[O-H\] bond in \[{{H}_{2}}O\]
done
clear
B)
Heat evolved when one mole of \[{{H}_{2}}O\] is formed from its elements
done
clear
C)
Enthalpy changed by vaporisation of water
done
clear
D)
The melting point of ice.
done
clear
View Answer play_arrow
The compound which gives off oxygen on mode rate heating is:
A)
cupric oxide
done
clear
B)
zinc oxide
done
clear
C)
aluminium oxide
done
clear
D)
mercuric oxide
done
clear
View Answer play_arrow
In the complex ion \[{{\left\{ Co{{(N{{H}_{3}})}_{6}} \right\}}^{3+}}\] the \[N{{H}_{3}}\] molecules are linked to the central metal ion by
A)
ionic bonds
done
clear
B)
covalent bonds
done
clear
C)
co-ordinate bonds
done
clear
D)
hydrogen bonds
done
clear
View Answer play_arrow
The electron affinities of halogens follow the order
A)
\[{{F}_{2}}>C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}\]
done
clear
B)
\[C{{l}_{2}}>{{F}_{2}}>B{{r}_{2}}>{{I}_{2}}\]
done
clear
C)
\[B{{r}_{2}}>C{{l}_{2}}>{{F}_{2}}>{{I}_{2}}\]
done
clear
D)
\[{{I}_{2}}>B{{r}_{2}}>C{{l}_{2}}>{{F}_{2}}\]
done
clear
View Answer play_arrow
The IUPAC name of complex \[{{K}_{3}}[Fe{{({{C}_{2}}{{O}_{4}})}_{3}}]\] is:
A)
trioxalato potassium ferrate (III)
done
clear
B)
tripotassium trioxalato iron (III)
done
clear
C)
potassium trioxalato ferrate (III)
done
clear
D)
potassium iron (III) trioxalato
done
clear
View Answer play_arrow
An ideal gas is found to obey an additional law \[{{P}^{2}}V\] = constant. The gas is initially at temperature T and volume V. When it expands to a volume 2V, the temperature becomes:
A)
\[\frac{T}{2}\]
done
clear
B)
\[2T\]
done
clear
C)
\[\sqrt{2}T\]
done
clear
D)
\[\frac{T}{\sqrt{2}}\]
done
clear
View Answer play_arrow
A flask containing air (open to atmosphere) is heated from 300 K to 500 K. The percentage of air escaped to the atmosphere is:
A)
\[66.6%\]
done
clear
B)
\[16.6%\]
done
clear
C)
\[33.3%\]
done
clear
D)
\[40%\]
done
clear
View Answer play_arrow
Lattice and hydration energies of \[NaCl\] are \[+777.8\text{ }kJ\text{ }mo{{l}^{-1}}\]and \[-774.1\text{ }kJ\text{ }mo{{l}^{-1}}\] respectively. Heat of solution of \[NaCl\] will be:
A)
\[1551.9\text{ }kJ\text{ }mo{{l}^{-1}}\]
done
clear
B)
\[-1551.9\text{ }kJ\text{ }mo{{l}^{-1}}\]
done
clear
C)
\[-37\text{ }kJ\text{ }mo{{l}^{-1}}\]
done
clear
D)
\[+3.7\text{ }kJ\text{ }mo{{l}^{-1}}\]
done
clear
View Answer play_arrow
Which one of the following is a non-spontaneous reaction?
A)
Dissolution of a salt in water
done
clear
B)
Expansion of a gas into vacuum
done
clear
C)
Melting of ice
done
clear
D)
Passage of a gas from a lower pressure to a higher pressure
done
clear
View Answer play_arrow
In a set of reactions acetic acid yielded a product D. \[C{{H}_{3}}COOH\xrightarrow{SOC{{l}_{2}}}A\xrightarrow[Anhy.\,\,AlC{{l}_{3}}]{Benzene}B\xrightarrow{HCN}C\] \[\xrightarrow{HOH}D\] The structure of D would be
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
Boron compounds behave as lewis acids because of their
A)
acidic nature
done
clear
B)
Covalent nature
done
clear
C)
ionisation property
done
clear
D)
electron deficient nature
done
clear
View Answer play_arrow
The mjaor organic product formed from the following reaction:
?is
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
Resonance structures of a molecule should not have
A)
an identical arrangement of atoms
done
clear
B)
nearly same energy content
done
clear
C)
same number of paired electrons
done
clear
D)
an identical bonding
done
clear
View Answer play_arrow
Anomalous behaviour of nitrogen is due to
A)
small size and high electronegativity
done
clear
B)
non-availability of d-orbitals in the valence shell
done
clear
C)
ease of multiple bond formation
done
clear
D)
all of the above
done
clear
View Answer play_arrow
For adsorption of gas in solid \[\log \left( \frac{x}{m} \right)\] versus log P is linear with the slope equal to:
A)
k
done
clear
B)
log k
done
clear
C)
n
done
clear
D)
\[\frac{1}{n}\]
done
clear
View Answer play_arrow
Lindlar's catalyst is:
A)
Pd and \[C{{O}_{2}}\]
done
clear
B)
Pd and \[{{H}_{2}}\]
done
clear
C)
Palladised charcoal deactivated with sulphur
done
clear
D)
Pd and \[CaC{{O}_{3}}\]
done
clear
View Answer play_arrow
Which of the following statements is false in case of epoxides?
A)
Epoxides are very reactive compounds due to the case of opening of highly strained three membered ring.
done
clear
B)
The \[C-O\] bonds in the epoxides are weaker than in ordinary ethers.
done
clear
C)
Epoxides are less stable than aliphatic ether molecule.
done
clear
D)
Epoxides are inert as compared to ethers
done
clear
View Answer play_arrow
Which of the following metal ions plays an important role in the muscle contraction?
A)
\[N{{a}^{+}}\]
done
clear
B)
\[{{K}^{+}}\]
done
clear
C)
\[F{{e}^{3+}}\]
done
clear
D)
\[C{{a}^{2+}}\]
done
clear
View Answer play_arrow
Which of the following property is not associated with glycerol?
A)
Formation of tartronic acid on oxidation
done
clear
B)
Formation of acrolein on dehydration
done
clear
C)
Formation of \[{{H}_{2}}O,C{{O}_{2}}\] on reduction
done
clear
D)
Formation of allyl iodide with \[HI\]
done
clear
View Answer play_arrow
Which of the following is a double base propellant?
A)
Methyl nitrate and nitromethane
done
clear
B)
Nitroglycerine and nitrocellulose
done
clear
C)
Kerosine and alcohol
done
clear
D)
Acrylic rubber and liquid \[{{N}_{2}}{{O}_{4}}\]
done
clear
View Answer play_arrow
Ascorbic acid is the chemical name of
A)
Vitamin \[{{B}_{6}}\]
done
clear
B)
Vitamin A
done
clear
C)
Vitamin C
done
clear
D)
Vitamin D
done
clear
View Answer play_arrow
Which of the following polymer chains are held together by H-bonds?
A)
Nylon-6
done
clear
B)
Orion
done
clear
C)
Dacron
done
clear
D)
Polypropylene
done
clear
View Answer play_arrow
Compound B is
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
Which of the following compounds will have the highest dipole moment?
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
The well known urinary antiseptic urotropine is formed when formaldehyde reacts with
A)
\[N{{H}_{2}}OH\]
done
clear
B)
\[N{{H}_{3}}\]
done
clear
C)
\[N{{H}_{2}}N{{H}_{2}}\]
done
clear
D)
\[{{C}_{6}}{{H}_{5}}NHN{{H}_{2}}\]
done
clear
View Answer play_arrow
This reaction is called
A)
Reimer - Tiemann reaction
done
clear
B)
Lederer - Manasse reaction
done
clear
C)
Sandmeyer reaction
done
clear
D)
Kolbe's reaction
done
clear
View Answer play_arrow
At higher temperature iodoform reaction is given by
A)
\[C{{H}_{3}}C{{O}_{2}}C{{H}_{3}}\]
done
clear
B)
\[C{{H}_{3}}C{{O}_{2}}{{C}_{2}}{{H}_{5}}\]
done
clear
C)
\[{{C}_{6}}{{H}_{5}}C{{O}_{2}}C{{H}_{3}}\]
done
clear
D)
\[C{{H}_{3}}C{{O}_{2}}{{C}_{6}}{{H}_{5}}\]
done
clear
View Answer play_arrow
Allyl chloride on dehydrochlorination gives
A)
Propadiene
done
clear
B)
Propylene
done
clear
C)
Allyl alcohol
done
clear
D)
Acetyl chloride
done
clear
View Answer play_arrow
Select the E-isomer among the following compound
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
99% of a first order reaction was completed in 32 min. When will \[99.9%\]of the reaction complete?
A)
50 min
done
clear
B)
45 min
done
clear
C)
49 min
done
clear
D)
48 min
done
clear
View Answer play_arrow
The ionization constant of a weak electrolyte is \[25\times {{10}^{-6}}\] while the equivalent conductance of its \[0.01\,M\] solution is \[19.6\,S\,\,c{{m}^{2}}e{{q}^{-1}}\]. The equivalent conductance of the electrolyte at infinite dilution (in \[S\,\,c{{m}^{2}}\,e{{q}^{-1}}\]) will be
A)
250
done
clear
B)
196
done
clear
C)
392
done
clear
D)
384
done
clear
View Answer play_arrow
How many coulombs of electricity are required for reduction of 1 mole of \[MnO_{4}^{-}\] to \[M{{n}^{2+}}\]?
A)
\[96500\text{ }C\]
done
clear
B)
\[1.93\times {{10}^{5}}C\]
done
clear
C)
\[4.83\times {{10}^{5}}C\]
done
clear
D)
\[9.65\times {{10}^{6}}\text{ }C\]
done
clear
View Answer play_arrow
A solution containing components A and B follows Raoults's law
A)
A-B attraction force is greater than A-A and B-B
done
clear
B)
A-B attraction force is less than A-A and B-B
done
clear
C)
A-B attraction force remains same as A-A and B-B
done
clear
D)
Volume of solution is different from sum of volume of solute and solvent
done
clear
View Answer play_arrow
Acetic acid dissolved in benzene shows a molecular weight of
A)
60
done
clear
B)
120
done
clear
C)
180
done
clear
D)
240
done
clear
View Answer play_arrow
For 100 times increase in concentration of \[{{H}^{+}}\] ions
A)
pH increases by 2 units
done
clear
B)
pH decreases by 2 units
done
clear
C)
pH remains unaltered
done
clear
D)
pH decreases by 1 units
done
clear
View Answer play_arrow
The favourable conditions for a spontaneous reaction are
A)
\[T\Delta S>\Delta H,\,\Delta H=+ve,\,\Delta S=+ve\]
done
clear
B)
\[T\Delta S>\Delta H,\,\Delta H=+ve,\,\Delta S=-ve\]
done
clear
C)
\[T.\Delta S=\Delta H,\,\Delta H=-ve,\,\Delta S=-ve\]
done
clear
D)
\[T.\Delta S=\Delta H,\,\Delta H=+ve,\,\Delta S=+ve\]
done
clear
View Answer play_arrow
The structure which are meant to absorb water and minerals from the soil arise from
A)
Region of maturation
done
clear
B)
Region of elongation
done
clear
C)
Region of meristernatic activity
done
clear
D)
Region of cell formation
done
clear
View Answer play_arrow
Which of the following shows alternate phyllolaxy?
A)
Guava, China rose, Alstonia
done
clear
B)
China Rose, Mustard, Sunflower
done
clear
C)
Mustard, Calotropis, Guava
done
clear
D)
Nerium, Zinnia, Alstonia
done
clear
View Answer play_arrow
Salvia has four stamens; out of which two are long and two are short, such condition is known as
A)
Tetradynamous
done
clear
B)
Didynamous
done
clear
C)
Diplostemonous
done
clear
D)
Obdiplostemonous
done
clear
View Answer play_arrow
Egg plant belongs to
A)
Solanaceae
done
clear
B)
Poaceae
done
clear
C)
Liliaceae
done
clear
D)
Asteraceae
done
clear
View Answer play_arrow
Velamen is found in
A)
Aerial roots of orchids
done
clear
B)
Clinging roots of orchids
done
clear
C)
Subacrial roots of Rhizophora
done
clear
D)
Coralloid roots of Cycas
done
clear
View Answer play_arrow
Suberin is not found in
A)
Phellem
done
clear
B)
Casparian strips
done
clear
C)
Heart wood
done
clear
D)
More than one option is correct
done
clear
View Answer play_arrow
Select correct with respect to chloroplast
A)
DNA, Ribosome, Quantasome, Oxysome
done
clear
B)
DNA, Ribosome, Oxysome
done
clear
C)
DNA, Ribosome, Elementary body
done
clear
D)
DNA, Ribosome, Quantasome
done
clear
View Answer play_arrow
Lysosome are very rich in almost type of hydrolytic enzymes which functions best at pH
A)
14
done
clear
B)
5
done
clear
C)
10
done
clear
D)
8
done
clear
View Answer play_arrow
Which of the following enzymes are not associated with lysosome?
A)
Nucleases
done
clear
B)
Carbohydrases
done
clear
C)
Proteases
done
clear
D)
Peroxidases
done
clear
View Answer play_arrow
The DNA content of the diploid cell in \[{{G}_{2}}-\] phase is
A)
C
done
clear
B)
2C
done
clear
C)
8C
done
clear
D)
4C
done
clear
View Answer play_arrow
Which of the following is mismatched?
A)
Vitamin A - Xerophthalmia
done
clear
B)
Vitamin D - Rickets
done
clear
C)
Vitamin C - Scurvy
done
clear
D)
Vitamin K - Beri beri
done
clear
View Answer play_arrow
Which of the following is the structural and functional unit of neural system?
A)
Nephron
done
clear
B)
Neophron
done
clear
C)
Neuron
done
clear
D)
Sarcomere
done
clear
View Answer play_arrow
On the basis of R group there are many amino acids, if R group could be hydroxy methyl, it is called
A)
Glycine
done
clear
B)
Alanine
done
clear
C)
Serine
done
clear
D)
Methionine
done
clear
View Answer play_arrow
Nucleic acids exhibit a wide variety of
A)
Secondary structure
done
clear
B)
Primary structure
done
clear
C)
Tertiary structure
done
clear
D)
Quaternary structure
done
clear
View Answer play_arrow
The saliva secreted into oral cavity does not contain
A)
Enzymes
done
clear
B)
Salivary amylase
done
clear
C)
Electrolytes
done
clear
D)
Enterokinase
done
clear
View Answer play_arrow
Egestion of feces to the outside through the anal opening is called
A)
Defaecation
done
clear
B)
Parturition
done
clear
C)
Micturition
done
clear
D)
Deglutition
done
clear
View Answer play_arrow
Vomiting is a type of reflex action its centre is present in
A)
Hypothalamus
done
clear
B)
Cerebral hemisphere
done
clear
C)
Medulla
done
clear
D)
Spinal cord
done
clear
View Answer play_arrow
Which of the following juice acts on the end products of the substrate to convert them into absorbable forms?
A)
Pancreatic juice
done
clear
B)
Bile juice
done
clear
C)
Succus entericus
done
clear
D)
Salivary juice
done
clear
View Answer play_arrow
Volume of air inspired or expired during a normal respiration is called
A)
Tidal volume
done
clear
B)
Tnspiratory Reserve Volume
done
clear
C)
Expiratory Reserve Volume
done
clear
D)
Residual Volume
done
clear
View Answer play_arrow
Cigarette smoking leads to lung cancer, the disorder of lungs which mainly occurs due to cigarette smoking is
A)
Asthma
done
clear
B)
Emphysema
done
clear
C)
Pleurisy
done
clear
D)
Pneumonia
done
clear
View Answer play_arrow
Cellular structure of body is a denning feature of
A)
A life form
done
clear
B)
All life forms
done
clear
C)
Viruses
done
clear
D)
Viroids
done
clear
View Answer play_arrow
Taxonomic key can be prepared for
A)
Class only
done
clear
B)
Genus only
done
clear
C)
Species only
done
clear
D)
For all categories
done
clear
View Answer play_arrow
At which one of the following category level, there shall be great difficulty in determining the relationship with other taxa?
A)
Family
done
clear
B)
Class
done
clear
C)
Order
done
clear
D)
Genus
done
clear
View Answer play_arrow
In five kingdom classification, multicellular and eukaryotic organisms with heterotrophic nutrition are included in
A. Animalia B. Fungi C. Protista D. Monera
Correct options are
A)
A, B
done
clear
B)
Only A
done
clear
C)
A, C
done
clear
D)
Only D
done
clear
View Answer play_arrow
Consumer - decomposer protist is
A)
Euglena
done
clear
B)
Slime mould
done
clear
C)
Gymnodinium
done
clear
D)
Ceratium
done
clear
View Answer play_arrow
Fungi prefer to grow at
A)
Warm and humid places only
done
clear
B)
Warm, humid and dark places
done
clear
C)
Warm, humid and illuminated places
done
clear
D)
Warm places only
done
clear
View Answer play_arrow
Conidia in fungi cannot be
A)
Asexual spore
done
clear
B)
Exogenously produced spore
done
clear
C)
Haploid
done
clear
D)
Produced sexually
done
clear
View Answer play_arrow
Gametes in funaria and Marchantia, are formed by
A)
Mitosis
done
clear
B)
Sporic meiosis
done
clear
C)
Gametic meiosis
done
clear
D)
Zygotic meiosis
done
clear
View Answer play_arrow
In Cycas
A)
Coralloid roots are associated with N, - fixing bacteria
done
clear
B)
Pinnate leaves persist for several years
done
clear
C)
Stem is branched
done
clear
D)
Female cone is largest in plant kingdom
done
clear
View Answer play_arrow
Two common caracters present in Nereesis and pheretima arc
A)
Aquatic and free living
done
clear
B)
Coelomate and dioecaous
done
clear
C)
Parapadia and setae
done
clear
D)
Triploblastic and bilateral symmetry
done
clear
View Answer play_arrow
Presence of radula is a characteristic feature of all except
A)
Pila
done
clear
B)
Aplysia
done
clear
C)
Chaelopleura
done
clear
D)
Unio
done
clear
View Answer play_arrow
Complete the following analogy Limulus : Living fossil: : Anopheles :
A)
Economically important insect
done
clear
B)
Gregarious pest
done
clear
C)
Frugivorous
done
clear
D)
Vector
done
clear
View Answer play_arrow
Among the following given animals choose a completely non-parasitic form
A)
Ascaris
done
clear
B)
Fasciola
done
clear
C)
Meandrina
done
clear
D)
Plirudinaria
done
clear
View Answer play_arrow
Choose the odd one out
A)
Apis
done
clear
B)
Bombyx
done
clear
C)
Laccifer
done
clear
D)
Culex
done
clear
View Answer play_arrow
In which of the following fish four pairs of gills are present which are covered by an operculum and found in marine water?
A)
Exocoetus
done
clear
B)
Labeo
done
clear
C)
Catia
done
clear
D)
Clarias
done
clear
View Answer play_arrow
In _______, notochord extends from head to tail region and is persistent throughout the life.
A)
Ascidia
done
clear
B)
Salpa
done
clear
C)
Brachiostoma
done
clear
D)
Doliolum
done
clear
View Answer play_arrow
Feather like gills are the characteristic feature of
A)
Prawn
done
clear
B)
Pila
done
clear
C)
Asterias
done
clear
D)
Balanoglossus
done
clear
View Answer play_arrow
In which of the following animals jaws are absent?
A)
Scoliodon
done
clear
B)
Pterophyllum
done
clear
C)
Petromyzon
done
clear
D)
Hippo campus
done
clear
View Answer play_arrow
The digestive tract of birds has additional chambers
A)
Gizzard and hepatic caecae
done
clear
B)
Crop and Gizzard
done
clear
C)
Crop and Gastric caecae
done
clear
D)
Gizzard and Pharynx
done
clear
View Answer play_arrow
A double stranded DNA with three helices carry 30% Adenine. Find total number of Guanine present.
A)
60
done
clear
B)
20
done
clear
C)
40
done
clear
D)
12
done
clear
View Answer play_arrow
Which one of the genes in lac operon expressed efficiently in a constant manner?
A)
Lac Z
done
clear
B)
Lac Y
done
clear
C)
Lac I
done
clear
D)
Lac A
done
clear
View Answer play_arrow
Which one of the following is the real inducer in lac operon?
A)
Galactose
done
clear
B)
\[\beta \]- galactosidase
done
clear
C)
Glucose
done
clear
D)
Allolactose
done
clear
View Answer play_arrow
There are specific tRNA for every amino acid. The tRNA
A)
React with carboxyl group of amino acid
done
clear
B)
Binds to enzyme, ribosomes and amino acid at N-terminus
done
clear
C)
is specific for all 64 codons
done
clear
D)
has clover leaf shaped tertiary structure
done
clear
View Answer play_arrow
Crop variety bred by hybridisation and selection for disease resistance to fungi is
A)
Pusa shubhra
done
clear
B)
Pusa sadabahar
done
clear
C)
Pusa swarnim
done
clear
D)
Pusa komal
done
clear
View Answer play_arrow
Therapeutic value of penicillin was explored by
A)
Alexander Flemming
done
clear
B)
Walksman
done
clear
C)
Florey & Chain
done
clear
D)
Walksman & Flemming
done
clear
View Answer play_arrow
Bacteria that can fix atmospheric nitrogen while free living in the soil is
A)
Rhizobium
done
clear
B)
Aulosira
done
clear
C)
Azospirillum
done
clear
D)
Anabaena
done
clear
View Answer play_arrow
Term saltation was given by
A)
Charles Darwin
done
clear
B)
Hugo de vries
done
clear
C)
Herbert Spencer
done
clear
D)
David lack
done
clear
View Answer play_arrow
Different breets of domestic pigeon have been developed from the wild rock pigeon, it is an example of
A)
Natural selection
done
clear
B)
Artificial selection
done
clear
C)
Mutation theory
done
clear
D)
Genetic drift
done
clear
View Answer play_arrow
Phrase "Survival of the Fittest" was given by
A)
August Weismann
done
clear
B)
Ernst Mayr
done
clear
C)
T. Dobzhansky
done
clear
D)
Herbert Spencer
done
clear
View Answer play_arrow
Which of the following is a bacterial disease that affects the lungs?
A)
Polio
done
clear
B)
Typhoid
done
clear
C)
Tuberculosis
done
clear
D)
Common cold
done
clear
View Answer play_arrow
Symptoms of allergy can be readily reduced by the use of all, except
A)
Histamine
done
clear
B)
Cortisol
done
clear
C)
Adrenaline
done
clear
D)
Anti histamine
done
clear
View Answer play_arrow
Which antibody is chief mediator of immune response upon forth exposure to antigen if antigen is pollen?
A)
IgA
done
clear
B)
IgG
done
clear
C)
IgE
done
clear
D)
IgM
done
clear
View Answer play_arrow
Select the disease which is not an auto-immune disorder
A)
Myasthenia gravis
done
clear
B)
Rheumatoid arthritis
done
clear
C)
IDDM
done
clear
D)
Muscular dystrophy
done
clear
View Answer play_arrow
In which of the following organisms both male and female gametes are motile?
A)
Marchantia
done
clear
B)
Chara
done
clear
C)
Cladophora
done
clear
D)
Ophioglossum
done
clear
View Answer play_arrow
In which one of the following organisms syngamy occurs outside the body?
A)
Gymnosperms
done
clear
B)
Bryophytes
done
clear
C)
Pteridophytes
done
clear
D)
Majority of algae
done
clear
View Answer play_arrow
In some cereals such as rice and wheat, pollen grain lose viability within _____ of their release
A)
10 minutes
done
clear
B)
20 minutes
done
clear
C)
30 minutes
done
clear
D)
15 minutes
done
clear
View Answer play_arrow
Pollination in Ravenela plant takes place by
A)
Geeko Lizard
done
clear
B)
Lemurs
done
clear
C)
Garden Lizard
done
clear
D)
Rodents
done
clear
View Answer play_arrow
Exalbuminous seeds are found in
A)
Lily, Maize
done
clear
B)
Rice, Castor
done
clear
C)
Pea, Groundnut
done
clear
D)
Wheat Sunflower
done
clear
View Answer play_arrow
A form of asexual reproduction that mimics sexual reproduction is known as
A)
Amphimixis
done
clear
B)
Apomixis
done
clear
C)
Semigamy
done
clear
D)
Polyspermy
done
clear
View Answer play_arrow
The human skin colour is controlled by
A)
Three pair of polygenes
done
clear
B)
Four pair of polygenes
done
clear
C)
Five pair of polygenes
done
clear
D)
Two pair of polygenes
done
clear
View Answer play_arrow
Loose or gain of a segment of DNA results or causes
A)
Frame shift mutation
done
clear
B)
In change in number of chromosome
done
clear
C)
In change in single base pair of DNA
done
clear
D)
In alteration in chromosomes
done
clear
View Answer play_arrow
Secretion of which glands and ducts is essential for maturation of sperms
A)
Vas deferens, seminal vesicle, prostate
done
clear
B)
Seminal vesicle, prostate Epididymis
done
clear
C)
Vas deferens, seminal vesicle epididymis
done
clear
D)
Prostate, vas deferens, seminal vesicle epididymis
done
clear
View Answer play_arrow
Failure of testes to descend in scrotal sac is called as
A)
Cryptorchidism
done
clear
B)
Castration
done
clear
C)
Fertility
done
clear
D)
Impotency
done
clear
View Answer play_arrow
If 50 spermatozoa undergo spermatogenesis, then how many spermatozoa will be formed
A)
200
done
clear
B)
50
done
clear
C)
300
done
clear
D)
400
done
clear
View Answer play_arrow
The female reproductive system includes
A)
Cervix and uterus
done
clear
B)
Oviduct and Ovaries
done
clear
C)
Vagina, External genitalia, Mammary gland
done
clear
D)
All of these
done
clear
View Answer play_arrow
Which one of these stimulates spermatogenesis
A)
LH
done
clear
B)
FSH
done
clear
C)
Testosterone
done
clear
D)
All of these
done
clear
View Answer play_arrow
The part of fallopian tube closest to uterus is
A)
Fimbrie
done
clear
B)
Isthmus
done
clear
C)
Ampulla
done
clear
D)
Infendibuliform
done
clear
View Answer play_arrow
The first sign of growing foetus is noticed by
A)
Movement of foetus
done
clear
B)
Notochord formation
done
clear
C)
No menstruation
done
clear
D)
Listening of heart sound of foetus
done
clear
View Answer play_arrow
That hormone maintains corpus luteum if pregnancy occurs
A)
hPL
done
clear
B)
hCG
done
clear
C)
LIT
done
clear
D)
CRH
done
clear
View Answer play_arrow
In case of syphilis chance appears during
A)
Primary stage
done
clear
B)
Latent phase
done
clear
C)
Tertiary phase
done
clear
D)
Secondary stage
done
clear
View Answer play_arrow
Which is world first non-hormonal oral contraceptive pill with high contraceptive value.
A)
Mala D
done
clear
B)
POP
done
clear
C)
Sahcli
done
clear
D)
Morning after pill
done
clear
View Answer play_arrow
Crop which has been enriched with \[Fe,\text{ }Ca\] and Vitamin A by IARI, New Delhi is
A)
Bathua
done
clear
B)
Spinach
done
clear
C)
Carrot
done
clear
D)
Pompkin
done
clear
View Answer play_arrow
Petroleum producing plants belong to angiospermic family
A)
Euphorbiaceae
done
clear
B)
Asclepiadaceae
done
clear
C)
Asteraceae
done
clear
D)
All of these
done
clear
View Answer play_arrow
All solids that undergo sedimentation and screened organic matter in STP collectively constitute
A)
Primary effluent
done
clear
B)
Primary sludge
done
clear
C)
Activated sludge
done
clear
D)
Floes
done
clear
View Answer play_arrow
Stage of temporary suspension of development in zoospores under unfavorable conditions is
A)
Hibernation
done
clear
B)
Dormancy
done
clear
C)
Diapause
done
clear
D)
Aestivation
done
clear
View Answer play_arrow
Pyramid of number in a tree ecosystem, if it terminates in predatory food chain is
A)
Upright
done
clear
B)
Inverted
done
clear
C)
Spindle shaped
done
clear
D)
Triangular
done
clear
View Answer play_arrow
Genetic material found in human Immunodeficiency virus is
A)
ds DNA
done
clear
B)
ss DNA
done
clear
C)
ds RNA
done
clear
D)
ss RNA
done
clear
View Answer play_arrow
Magic bullets are
A)
Restriction endonucleases
done
clear
B)
Performs
done
clear
C)
Monoclonal antibiotics
done
clear
D)
Monoclonal antibodies
done
clear
View Answer play_arrow
In dairy farm management, dairying is the management of
A)
Milk
done
clear
B)
Increase their diversity
done
clear
C)
Milk product for human consumption
done
clear
D)
More than one option is correct
done
clear
View Answer play_arrow
Community health service includes
A)
School and health education
done
clear
B)
Hygienic environment
done
clear
C)
Control of communicable disease
done
clear
D)
More than one option is correct
done
clear
View Answer play_arrow
Cancer is related to
A)
Controlled division
done
clear
B)
Uncontrolled division
done
clear
C)
Old age
done
clear
D)
Young age
done
clear
View Answer play_arrow
Bacterial cell wall is effectively removed by
A)
Cellulose
done
clear
B)
Lipase
done
clear
C)
Chitinase
done
clear
D)
Lysozymes
done
clear
View Answer play_arrow
Inserted genes generally express themselves as
A)
Enzymes
done
clear
B)
Proteins
done
clear
C)
Lipids
done
clear
D)
Carbohydrates
done
clear
View Answer play_arrow
The first transgenic crop was
A)
Wheat
done
clear
B)
Maize
done
clear
C)
Tobacco
done
clear
D)
Pea
done
clear
View Answer play_arrow
Which one of the following character is shown by normal cells?
A)
Contact inhibition
done
clear
B)
Limited telomerase activity
done
clear
C)
Presence of proto-oncogenes
done
clear
D)
All of these
done
clear
View Answer play_arrow
Bt-cotton has the gene to distract
A)
Bacterial pathogens
done
clear
B)
Insects pests
done
clear
C)
Nematodes
done
clear
D)
More than one option is correct
done
clear
View Answer play_arrow
Most widely used bio-weapon is
A)
Bacillus anthracis
done
clear
B)
Pseudomonas putida
done
clear
C)
Bacillus brevis
done
clear
D)
All of these
done
clear
View Answer play_arrow
Cells obtained from cancerous tumour are known as
A)
Hybridomas
done
clear
B)
Myeloma
done
clear
C)
Lymphocyte
done
clear
D)
Monoclonal cells
done
clear
View Answer play_arrow
Tranquilizer differ from sedative that they
A)
Make a person more wakeful
done
clear
B)
Produce calmness
done
clear
C)
Produce calmness without inducing sleep
done
clear
D)
Produce excitation
done
clear
View Answer play_arrow
Which of the following can be used as selectable marker?
A)
Lac 2 gene
done
clear
B)
Tetracycline resistance gene
done
clear
C)
Ampicillin resistance gene
done
clear
D)
All of these
done
clear
View Answer play_arrow