Solved papers for JEE Main & Advanced AIEEE Solved Paper-2009
done AIEEE Solved Paper-2009 Total Questions - 30
question_answer1) Knowing that the Chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following statements is incorrect?
AIEEE Solved Paper-2009
A)
Because of the large size of the Ln (III) ions the bonding in its compounds is predominantly ionic in character.
doneclear
B)
The ionic sizes of Ln (III) decrease in general with increasing atomic number.
doneclear
C)
Ln (III) compounds are generally colourless
doneclear
D)
Ln (III) hydroxides are mainly basic in character.
question_answer2) A liquid was mixed with ethanol and a drop of concentrated \[{{H}_{2}}S{{O}_{4}}\] was added. A compound with a fruity smell was formed. The liquid was:
AIEEE Solved Paper-2009
question_answer3) Arrange the carbanions,\[{{(C{{H}_{3}})}_{3}}\overline{C},\overline{C}C{{l}_{3}}{{(C{{H}_{3}})}_{2}}\] \[\overline{C}H,{{C}_{6}}{{H}_{5}}\overline{C}{{H}_{2}},\] in order of their decreasing stability:
AIEEE Solved Paper-2009
question_answer5) In which of the following arrangements, the sequence is not strictly according to the property written against it?
AIEEE Solved Paper-2009
A)
\[C{{O}_{2}}>Si{{O}_{2}}<Sn{{O}_{2}}<Pb{{O}_{2}}:\]increasing oxidizing power
question_answer9) In an atom, an electron is moving with a speed of 600 m/s with an accuracy of 0.005%. certainity with which the position of the electron can be located is \[h=6.6\times {{10}^{34}}kg\]\[{{m}^{2}}{{s}^{1}},\]mass of electron\[{{e}_{m}}=9.1\times {{10}^{31}}kg\]):
AIEEE Solved Paper-2009
question_answer10) In a fuel cell methanol is used as fuel and oxygen gas is used as an oxidizer. The reaction is \[C{{H}_{3}}OH(l)+3/2{{O}_{2}}(g)\xrightarrow[{}]{{}}C{{O}_{2}}(g)+2{{H}_{2}}O(l)\] At 298 K standard Gibb?s energies of formation for\[C{{H}_{3}}OH(l),{{H}_{2}}O(l)\]and\[C{{O}_{2}}(g)\]are -166.2, - 237.2 and -394.4 kJ \[mo{{l}^{1}}\]respectively. If standard enthalpy of combustion of methanol is\[726\text{ }kJ\text{ }mo{{l}^{1}},\] efficiency of the fuel cell will be:
AIEEE Solved Paper-2009
question_answer11) Two liquids X and Y form an ideal solution. At 300 K, vapour pressure of the solution containing 1 mol of X and 3 mol of Y is 550 mm Hg. At the same temperature, if 1 mol of Y is further added to this solution, vapour pressure of the solution increases by 10 mm Hg. Vapour pressure (in mmHg) of X and Y in their pure states will be respectively:
AIEEE Solved Paper-2009
question_answer12) The half life period of a first order chemical reaction is 6.93 minutes. The time required for the completion of 99% of the chemical reaction will be\[(log2=0.301)\]
AIEEE Solved Paper-2009
question_answer13) Given: \[E_{F{{e}^{3+}}/Fe}^{0}=-0.036V,E_{F{{e}^{2+}}/Fe}^{0}=-0.439V.\]The value of standard electrode potential for the change,\[Fe_{(aq)}^{3+}+{{e}^{-}}\to F{{e}^{2+}}(aq)\]will be:
AIEEE Solved Paper-2009
question_answer14) On the basis of the following thermo chemical data:\[(\Delta f\,{{G}^{o}}H_{(aq)}^{+}=0)\] \[{{H}_{2}}O(l)\xrightarrow[{}]{{}}{{H}^{+}}(aq)+O{{H}^{}}(aq);\] \[\Delta H=57.32\text{ }kJ\] \[{{H}_{2}}O(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}{{H}_{2}}O(l);\] \[\Delta H=-286.20\,KJ\] The value of enthalpy of formation of\[O{{H}^{}}\]ion at\[25{}^\circ C\]is:
AIEEE Solved Paper-2009
question_answer17) Solid\[Ba{{(N{{O}_{3}})}_{2}}\]is gradually dissolved in a 1.0 \[\times {{10}^{4}}M\text{ }N{{a}_{2}}C{{O}_{3}}\]solution. At what concentration of\[B{{a}^{2+}}\]will a precipitate being to form? (\[{{K}_{sp}}\]for\[Ba\text{ }C{{O}_{3}}=5.1\times {{10}^{9}}\]):
AIEEE Solved Paper-2009
question_answer21) Calculate the wavelength (in nanometer) associated with a proton moving at\[1.0\times {{10}^{3}}\]\[m{{s}^{1}}\](Mass of proton\[=1.67\times {{10}^{27}}kg\] and h\[=6.63\times {{10}^{34}}Js\]):
AIEEE Solved Paper-2009
question_answer22) A binary liquid solution is prepared by mixing n-heptane and ethanol. Which one of the following statement is correct regarding the behaviour of the solution?
AIEEE Solved Paper-2009
A)
The solution formed is an ideal solution
doneclear
B)
The solution is non-ideal, showing +ve deviation from Raoult?s Law
doneclear
C)
The solution is non-ideal, showing -ve deviation from Raoult?s Law
doneclear
D)
n-heptane shows +ve deviation while ethanol shows -ve deviation from Raoult?s Law.
question_answer23) The number of stereoisomers possible for a compound of the molecular formula\[C{{H}_{3}}CH\] \[=CHCH(OH)Me\] is:
AIEEE Solved Paper-2009
question_answer27) The bond dissociation energy of\[BF\]in\[B{{F}_{3}}\]is\[646\text{ }kJ\text{ }mo{{l}^{1}}\] whereas that of\[CF\]in\[C{{F}_{4}}\]is\[515\text{ }kJ\text{ }mo{{l}^{1}}.\] The correct reason for higher\[B-F\]bond dissociation energy as compared to that of\[CF\]is:
AIEEE Solved Paper-2009
A)
smaller size of B - atom as compared to that of C - atom
doneclear
B)
stronger\[\sigma \]bond between B and F in\[B{{F}_{3}}\]as compared to that between C and F in\[C{{F}_{4}}\]
doneclear
C)
significant\[p\pi -p\pi \]interaction between B and F in\[B{{F}_{3}}\]whreas there is no possibility of such interaction between C and F in\[C{{F}_{4}}\]
doneclear
D)
lower degree of \[p\pi -p\pi \] interaction between B and F in\[B{{F}_{3}}\]than that between C and F in\[C{{F}_{4}}\]
question_answer28) In Cannizzaro reaction given below \[2Ph\text{ }CHO\xrightarrow[{}]{:\overset{\text{O-}}{\mathop{OH}}\,}Ph\text{ }C{{H}_{2}}OH+pHC\overset{\bullet \,\bullet }{\mathop{O_{2}^{\text{O-}}}}\,\] The slowest step is:
AIEEE Solved Paper-2009
A)
the attack of: \[O{{H}^{}}\]at the carboxyl group
doneclear
B)
the transfer of hydride to the carbonyl group
doneclear
C)
the abstraction of proton from the carboxylic group