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question_answer1)
X is a liquid that is partly soluble in liquid Y. Equal volumes of each liquid are taken in two jars as shown below.
Which of the following jars shows the most likely outcome if the two liquids are mixed?
A)
B)
C)
D)
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question_answer2)
Which of the following materials is hard, opaque and shines?
A)
Rubber done
clear
B)
Wood done
clear
C)
Tin done
clear
D)
Plastic done
clear
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question_answer3)
Which property of clay is useful for making pots and bricks?
A)
Opacity done
clear
B)
Non-magnetic nature done
clear
C)
A good conductor of heat done
clear
D)
Malleability done
clear
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question_answer4)
Which of the following materials is suitable to make raincoats?
A)
Cotton done
clear
B)
Plastic done
clear
C)
Silk done
clear
D)
Paper done
clear
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question_answer5)
Why are most of the balloons, tyres and footballs made of rubber?
A)
It is naturally available. done
clear
B)
It is cheap. done
clear
C)
It is an electrical insulator. done
clear
D)
It is soft and flexible. done
clear
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question_answer6)
What is the criteria on which the process of classification of substances is based on?
A)
Similarities done
clear
B)
Differences done
clear
C)
Interrelationships done
clear
D)
All the above done
clear
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question_answer7)
If opacity is the distinct feature of wood, then what is glass known for in the same way?
A)
Its transparency done
clear
B)
Its magnetic nature done
clear
C)
Its conductivity to heat done
clear
D)
Its lustrous nature done
clear
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question_answer8)
A mirror is
A)
opaque. done
clear
B)
transparent. done
clear
C)
translucent. done
clear
D)
flexible. done
clear
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question_answer9)
When Amrita was asked to pick up a few articles from a collection, she picked up the following:
Wooden scale |
Glass test tube |
Paper basket |
Which of the following articles is she most likely to pick up the next?
A)
Steel cup done
clear
B)
Iron chain done
clear
C)
Rubber gloves done
clear
D)
Copper wire done
clear
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question_answer10)
What are opaque objects?
A)
Those that reflect most of the light falling on them. done
clear
B)
Those that transmit most of the light falling on them. done
clear
C)
Those that refract most of the light falling on them. done
clear
D)
Those that are strong and hard. done
clear
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question_answer11)
Which characteristics given below are of metals?
(i) They are hard. |
(ii) They have lustre. |
(iii) They are good conductors of electricity |
A)
Only (i) and (ii) done
clear
B)
Only (ii) and (iii) done
clear
C)
Only (i) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
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question_answer12)
Clinical thermometers are made of glass. Identify the characteristic(s) considered for the selection.
(i) It is a bad conductor of heat |
(ii) It is transparent |
(iii) It is strong |
A)
Only (i) and (ii) done
clear
B)
Only (ii) and (iii) done
clear
C)
Only (i) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
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question_answer13)
Why are paper bags preferred over plastic bags?
A)
Paper bags are lighter. done
clear
B)
Paper bags are stronger. done
clear
C)
Paper bags are cheap. done
clear
D)
Paper bags are biodegradable. done
clear
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question_answer14)
A vendor sells white powdered salt mixed with white powdered stone. Which of these properties will help you detect this malpractice?
A)
Ductility done
clear
B)
Opacity done
clear
C)
Density done
clear
D)
Solubility done
clear
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question_answer15)
Even though a cinema hall is a place prone to fire hazards, the interiors are mostly made up of wooden panels. Why is this so?
A)
It does not catch fire easily. done
clear
B)
It is opaque. done
clear
C)
It absorbs sound. done
clear
D)
It is very commonly available. done
clear
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question_answer16)
Door locks are made of metals. Which property of metals is made use of?
A)
They have lustre. done
clear
B)
They are opaque. done
clear
C)
They are good conductors of heat. done
clear
D)
They are hard and strong. done
clear
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question_answer17)
Out of our total body weight, about two- thirds is made up of water. It is important to have a regular intake of water. Why?
A)
Water has lots of vitamins and proteins. done
clear
B)
Water can dissolve a lot of substances. done
clear
C)
Water conducts heat very fast and thereby maintains the body temperature. done
clear
D)
Water helps in maintaining the electrolytic balance in our body. done
clear
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question_answer18)
1 kg of iron occupies less space compared to 1 kg of sponge. Why?
A)
Iron has less density than sponge. done
clear
B)
Iron and sponge have equal densities. done
clear
C)
Iron has more density than sponge. done
clear
D)
Weight of iron per unit volume is less than that of sponge. done
clear
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question_answer19)
Which state of matter is easy to be compressed?
A)
Liquid done
clear
B)
Gaseous done
clear
C)
Solid done
clear
D)
Both (b) and (c) done
clear
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question_answer20)
Upon heating/solids usually turn into
A)
liquids. done
clear
B)
gases. done
clear
C)
mixtures. done
clear
D)
either (b) or (c). done
clear
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question_answer21)
Salt dissolves in water to form salt water. Identify the solvent.
A)
Salt done
clear
B)
Water done
clear
C)
Salt-water done
clear
D)
Salt and water done
clear
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question_answer22)
Sugar dissolves in water. Identify the solute.
A)
Sugar done
clear
B)
Water done
clear
C)
Sugar-water done
clear
D)
Sugar and water done
clear
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question_answer23)
Kerosene does not dissolve in water. What are they called?
A)
Immiscible liquids done
clear
B)
Solute and solvent done
clear
C)
Solvent and solution done
clear
D)
Miscible liquids done
clear
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question_answer24)
Milk and water dissolve in each other. What are they called?
A)
Immiscible liquids done
clear
B)
Solvent and solutions done
clear
C)
Miscible liquids done
clear
D)
Suspensions done
clear
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question_answer25)
Which is the most essential property of a substance to be used as a cooking vessel?
A)
Good conductor of heat done
clear
B)
Ductility done
clear
C)
Malleability done
clear
D)
All of the above done
clear
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question_answer26)
Which of the following is true of pure water?
A)
A good conductor of electricity done
clear
B)
A bad conductor of electricity done
clear
C)
A semiconductor done
clear
D)
A superconductor done
clear
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question_answer27)
Which of the combinations is the odd one out?
A)
Ink and water done
clear
B)
Milk and water done
clear
C)
Oil and water done
clear
D)
Lime juice and water done
clear
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question_answer28)
Which of the following type of bodies form sharp shadows when placed in the path of light?
A)
Transparent done
clear
B)
Translucent done
clear
C)
Transparent and translucent done
clear
D)
Opaque done
clear
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question_answer29)
Which instrument is used to measure the density of liquids?
A)
Hydrometer done
clear
B)
Hygrometer done
clear
C)
Density meter done
clear
D)
Ammeter done
clear
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question_answer30)
Read the given classification.
Which of the following materials are used in the making of X and Y?
A)
Wood metal done
clear
B)
Plastic, glass done
clear
C)
Bamboo glass done
clear
D)
Bamboo/plastic done
clear
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question_answer31)
Which of the given objects is hard/strong and unbreakable?
A)
Aluminium foil done
clear
B)
Paper bag done
clear
C)
Plastic file done
clear
D)
Glass table top done
clear
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question_answer32)
Which of the following materials is used to make an electric iron?
(i) Plastic |
(ii) Metal |
(iii) Glass |
A)
Only (i) done
clear
B)
Only (i) and (ii) done
clear
C)
Only (ii) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
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question_answer33)
Nishant put an object in front of a beam of light and noticed that a dark sharp shadow was immediately formed. What type of object did he place in front of light?
A)
A transparent object done
clear
B)
A translucent object done
clear
C)
An opaque object done
clear
D)
A flexible object done
clear
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question_answer34)
Mohan is able to bend the rod because it is
A)
light. done
clear
B)
hard. done
clear
C)
water proof. done
clear
D)
flexible. done
clear
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question_answer35)
Suresh put the same things in two different bags X and Y. However bag Y could not hold all the items and got torn.
What did Suresh conclude?
A)
Bag X is more flexible than bag T. done
clear
B)
Bag T is lighter than bag X done
clear
C)
Bag T is softer than bag X. done
clear
D)
Bag X is stronger than bag T. done
clear
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question_answer36)
A student added blue ink to a beaker containing water. After a few minutes the colour of water changed to blue. Which of these properties led to this colour change?
A)
Miscibility done
clear
B)
Malleability done
clear
C)
Ductility done
clear
D)
Compressibility done
clear
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question_answer37)
Which of the following statements is correct?
A)
Only some hard substances sink. done
clear
B)
All soft objects can be torn easily. done
clear
C)
All soft objects float in water. done
clear
D)
Some soft substances sink. done
clear
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question_answer38)
Which of the following is made of only one material?
A)
B)
C)
D)
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question_answer39)
The table given below shows some objects that have been grouped based on a certain property.
P | Q |
Wooden ruler | Iron rod |
Copper wire | Steel spoon |
Plastic cup | |
What is the property on which the objects have been grouped?
A)
The ability to conduct electricity. done
clear
B)
The ability to conduct heat. done
clear
C)
The property of being attracted by a magnet. done
clear
D)
The ability to reflect light. done
clear
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question_answer40)
How are the items given in the box grouped as?
Ruler |
Sharpener |
Eraser |
Pencil |
Water colours |
A)
Stationary done
clear
B)
Wooden done
clear
C)
Plastic done
clear
D)
Cutlery done
clear
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question_answer41)
Why does a drop of water that falls on a glowing electric bulb causes the bulb to burst?
A)
Because glass conducts electricity. done
clear
B)
Uneven cooling of the glass takes place. done
clear
C)
Because water freezes the bulb. done
clear
D)
Because glass conducts more heat. done
clear
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question_answer42)
Which of the following is NOT a bad conductor of heat?
A)
Wooden ruler done
clear
B)
Plastic ruler done
clear
C)
Iron ruler done
clear
D)
All of the above done
clear
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question_answer43)
Which of the following is NOT attracted by a magnet?
A)
Iron done
clear
B)
Nickel done
clear
C)
Cobalt done
clear
D)
Chalk done
clear
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question_answer44)
Equal volumes of oil and water are taken in two glasses and weighed.
What is the likely outcome?
A)
Oil weighs more. done
clear
B)
Water weighs more. done
clear
C)
Both oil and water weigh the same. done
clear
D)
Water weighs less when heated. done
clear
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question_answer45)
Which of the following properties cannot be used for distinguishing a solid from a liquid?
A)
Solubility done
clear
B)
Compressibility done
clear
C)
Change of state done
clear
D)
Conductivity done
clear
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question_answer46)
Which of these substances shows solubility in water?
A)
Sand done
clear
B)
Salt done
clear
C)
Chalk done
clear
D)
Iron pieces done
clear
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question_answer47)
Swapna was given two beakers having oil and water as shown below.
If all the water from the first beaker is poured into the beaker of oil, then which of the following correctly represents the above?
A)
B)
C)
D)
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question_answer48)
Why are overhead cables not insulated?
A)
Because air is a bad conductor of electricity. done
clear
B)
Because air is a good conductor of electricity. done
clear
C)
Bare wires conduct electricity better. done
clear
D)
Both (b) and (c). done
clear
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question_answer49)
Which of the following objects is denser than water?
A)
A key done
clear
B)
A sheet of paper done
clear
C)
A leaf done
clear
D)
A cork done
clear
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question_answer50)
The properties of copper are enlisted below.
(i) It is a good conductor of heat and electricity. |
(ii) It has lustre. |
(iii) Identify the correct set of properties of copper. |
A)
Only (i) done
clear
B)
Only (i) and (ii) done
clear
C)
Only (ii) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
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question_answer51)
Abhi bought an object. It is made of a hard material. It is fragile (easy to break) and allows light to pass through it. What can the object be?
A)
Shoes done
clear
B)
Mirror done
clear
C)
Cricket bat done
clear
D)
Fish tank done
clear
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question_answer52)
Which of these properties of water helps in the washing of clothes?
A)
Transparency done
clear
B)
Solubility done
clear
C)
Conductivity done
clear
D)
Compressibility done
clear
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question_answer53)
Which of these states of matter cannot be compressed?
A)
Liquids done
clear
B)
Gases done
clear
C)
Solids done
clear
D)
Semi-solids done
clear
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question_answer54)
Ramesh observed the properties of 3 substances X, Y and Z and recorded his observations as given in the table below.
Property | X | Y | Z |
Occupies space | Yes | Yes | Yes |
Has a definite shape | No | Yes | No |
Has a definite volume | No | Yes | Yes |
Can be compressed | Yes | No | No |
Which of the following is the correct representation of X, Y and Z?
A)
B)
C)
D)
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