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Free download in PDF Matter Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(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
(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
(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
(6)
Kinetic energy of molecules is directly proportional to
[A]
Pressure
[B]
Temperature
[C]
Both (a) and (b)
[D]
Atmospheric pressure
(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
(9)
The change of a liquid into vapour is called:
[A]
Solidification
[B]
Sublimation
[C]
Vaporization
[D]
None of these
(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
(12)
Which is more effective in cooling?
[A]
Ice at 373K
[B]
Water at 373K
[C]
Water at 273 K
[D]
Ice at 273K
(13)
Which of the following is not matter
[A]
Humidity
[B]
Electron
[C]
Moon rock
[D]
Blood
(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
(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
(19)
The colour of vapours formed on sublimation of iodine solid is
[A]
Yellow
[B]
Colourless
[C]
Purple (violet)
[D]
Orange
(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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