MCQ Questions | Class 9 Science Chapter 1 | Matter in Our Surroundings with Answers

MCQ | Matter in Our Surroundings Class 9 | Part-4

Check the below NCERT MCQ Questions for Class 9 Science Chapter 1 Matter in Our Surroundings with Answers Pdf free download. MCQ Questions for Class 9 Science with Answers were prepared based on the latest exam pattern. We have Provided Matter in Our Surroundings Class 9 Science MCQs Questions with Answers to help students understand the concept very well.

Objective Question | NCERT Science Class 9

NCERT Solutions Class 9 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	9th
Subject:	Science
Chapter:	1 ( Part-4 )
Chapters Name:	Matter in Our Surroundings
Medium:	English

Ncert Solutions for Class 9 Science | Objective Type Questions

You can refer to NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Matter in Our Surroundings | Class 9 Science | NCERT Solutions

Q1.	Which of the following is not a property of solids?
	A. Interparticle spaces are minimum
	B. Definite shape and volume
	C. Forces of attraction between the particles are maximum
	D. Particles can move freely within a limited space

Ans: Particles can move freely within a limited space

Q2.	During summer, water kept in earthen pot becomes cool due to phenomenon of
	A. Diffusion
	B. Transpiration
	C. Distillation
	D. Evaporation

Ans: Evaporation

Q3.	How does the state of matter change during the fusion process?
	A. Gas changes to solid
	B. Solid changes to liquid
	C. Gas changes to liquid
	D. Liquid changes to gas

Ans: Solid changes to liquid

Q4.	Solids do not flow because
	A. of large molecular space between particles
	B. they do not have definite shape
	C. they have very strong intermolecular forces in between particles
	D. all of these

Ans: they have very strong intermolecular forces in between particles

Q5.	Which of the following does not affect the rate of evaporation?
	A. Wind speed
	B. Temperature
	C. Humidity
	D. Insoluble impurities

Ans: Insoluble impurities

Q6.	What happens when a liquid becomes a gas?
	A. The particles of solid absorb all the heat energy and there occurs no change in the distance between them.
	B. The particles of liquid absorb heat energy and distance between them increases.
	C. The particles of liquid absorb heat energy and distance between them decreases.
	D. The particles of liquid do not absorb heat energy and distance between them increases.

Ans: The particles of liquid absorb heat energy and distance between them increases.

Q7.	Which condition out of the following will increase the evaporation of water?
	A. Increase in temperature of water
	B. Decrease in temperature of water
	C. Less exposed surface area of water
	D. Adding common salt to water

Ans: Increase in temperature of water

Q8.	Which of the following is needed by surgeons during surgery?
	A. Acid
	B. ether
	C. Ethane
	D. Propanol

Ans: ether

Q9.	Properties of CNG basis on volume.
	A.Large pressure of gas
	B.Large amount of natural gas
	C.Large amount of efficiency
	D.Large amount of volumes of gas compressed

Ans: Large amount of volumes of gas compressed

Q10.	Example of highly compressible gas used for humans need.
	A.LPG
	B.CNG
	C.Only LPG
	D.LPG and CNG

Ans: LPG and CNG

Q11.	The amount of the heat energy required to change 1kg of solid into liquid at atmospheric pressure at its melting point is known as…………………
	A.Fission of heat
	B.Fusion of heat
	C.Latent heat of fusion
	D.Latent heat of fission

Ans: Latent heat of fusion

Q12.	Water at 0 degree Celsius showing temperature at ………………..K
	A.274
	B.273
	C.277
	D.275

Ans: 273

Q13.	Choose temperature in Kelvin when boiling point of water is 100 degree.
	A.273
	B.286
	C.373
	D.383

Ans: 373

Q14.	A change of state directly from solid to gas without changing into liquid state is called…
	A.Sublimation
	B.Solidification
	C.Gasification
	D.Crystallization

Ans: Sublimation

Q15.	What is mean by sublimation?
	A.change of state directly from solid to liquid without changing into gas state
	B.change of state directly from soil to gas without changing into liquid state
	C.change of state directly from solid to gas without changing into ice state
	D.change of state directly from solid to gas without changing into liquid state

Ans: change of state directly from solid to gas without changing into liquid state

Q16.	Solid carbon dioxide store under……
	A.high temperature
	B.high volume
	C.high pressure
	D.low temperature

Ans: high pressure

Q17.	Solid to liquid and liquid to solid
	A.Fusion, condensation
	B.Fusion, saponification
	C.Fusion, solidification
	D.Solidification, deposition

Ans: Fusion, solidification

Q18.	Gas to liquid conversion.
	A.Gasification
	B.Vaporization
	C.Condensation
	D.Sublimation

Ans: Condensation

Q19.	Gas to solid conversion.
	A.Deposition
	B.Sublimation
	C.Vaporization
	D.Condensation

Ans: Deposition

Q20.	Unit of pressure is
	A.Joule
	B.Kelvin
	C.Kg
	D.Pa

Ans: Pa

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