Matter MCQs | Matter Multiple Choice Questions and Answers

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Questions
1 Which of the following is the property of Solid?
A Have definite shape
B Have low density
C Can be compressed
D Intermolecular force is less

Answer: Have definite shape
2 Which of the following is a property of diffusion?
A Based on motion of particles
B Slowest in liquids
C Fastest in gases
D All of the above

Answer: All of the above
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3 Name a technique which is used for separating two or more dissolved solids which are present in a solution in very small quantities?
A Chromatography
B Crystallisation
C Distillation
D None of these

Answer: Chromatography
4 Which of the following is incorrect about plasma?
A The plasma glows with colour which does not depend upon nature of gas
B The gas gets ionised when electrical energy flows through it
C Fluorescent tube and neon sign bulbs consist of plasma
D None of these

Answer: The plasma glows with colour which does not depend upon nature of gas
5 Under which of the following conditions we can boil water at room temperature?
A At high pressure
B At very high pressure
C At low pressure
D At atmospheric pressure

Answer: At low pressure
6 Kinetic energy of molecules is directly proportional to
A Pressure
B Temperature
C Both (a) and (b)
D Atmospheric pressure

Answer: Temperature
7 At higher altitudes:
A Melting point of solid increases
B Boiling point of a liquid increases
C No change in boiling point
D Boiling point of a liquid decreases

Answer: Boiling point of a liquid decreases
8 The liquid which has the highest rate of evaporation is:
A Alcohol
B Water
C Nail- polish remover
D Petrol

Answer: Petrol
9 The change of a liquid into vapour is called:
A Solidification
B Sublimation
C Vaporization
D None of these

Answer: Vaporization
10 When a gas is compressed keeping temperature constant. It results in:
A Decrease in collision among gaseous molecules
B Decrease in speed of gaseous molecules
C Increase in collision among gaseous molecules
D None of these

Answer: Decrease in collision among gaseous molecules
11 Gases can be liquefied by
A decreasing temperature
B increasing pressure
C both (a) and (b)
D decreasing pressure

Answer: both (a) and (b)
12 Which is more effective in cooling?
A Ice at 373K
B Water at 373K
C Water at 273 K
D Ice at 273K

Answer: Ice at 273K
13 Which of the following is not matter
A Humidity
B Electron
C Moon rock
D Blood

Answer: Humidity
14 Which one will help to accelerate the process of evaporation of a liquid kept in an open china dish?
A Keeping the dish under a running fan
B Keeping dish in open
C Blowing air into the liquid
D All the above

Answer: All the above
15 Which of the following processes is known as fusion?
A Change of solid to liquid
B Change of gaseous state to solid state
C Change of liquid to solid
D Change of liquid to vapour

Answer: Change of solid to liquid
16 Select the correct order of evaporation for water, alcohol, petrol and kerosene oil:
A Petrol > alcohol > kerosene oil > water
B Petrol > alcohol > water > kerosene oil
C Water > alcohol > kerosene oil > petrol
D Alcohol > petrol > water > kerosene oil

Answer: Petrol > alcohol > kerosene oil > water
17 Rate of diffusion of a gas is:
A Inversely proportional to the square root of its molecular mass
B Inversely proportional to the square root of its density
C Directly proportional to its density
D Directly proportional to its molecular mass

Answer: Inversely proportional to the square root of its molecular mass
18 In which phenomena water changes into water vapour below its B.P.?
A Boiling
B Condensation
C Evaporation
D No such phenomena exist

Answer: Evaporation
19 The colour of vapours formed on sublimation of iodine solid is
A Yellow
B Colourless
C Purple (violet)
D Orange

Answer: Purple (violet)
20 Diffusion in liquids is an example of:
A Spreading of ink in water
B Fragrance of incense stick
C Smell of perfume
D Smell of food

Answer: Spreading of ink in water

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