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Test Report

Matter In Our Surroundings

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Test Report

Matter In Our Surroundings

Q1. Which one of the following changes represent sublimation

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ANS

Solid ⇄ liquid  

Solid  ⇄ gas 

Liquid  ⇄ gas 

Solid  ⇄ Liquid  ⇄ gas 

Q2. Gases do not have

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ANS

High compressibility

High fluidity

High density

large volume

Q3. Evaporation of a material takes place

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ANS

Above its boiling point Above its melting point Below its boiling point Below its melting point

Q4. Which one of the following properties is not characteristic of liquid

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ANS

Fluidity Definite shape Definite volume Compressibility

Q5. Particles of a liquid

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ANS

Are most liquid Move randomly Have large intermolecular spaces Can slip & slid over each other

Q6.

Gases are liquified under

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ANS

High pressure, high temperature High pressure, low temperature Low pressure, high temperature Low pressure, low temperature