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CBSE Notes 2011-2012 » XI-Chemistry

States of Matter : Gases and Liquids

Why is air denser at lower level than at higher altitudes ?

Short answer question

Why is air denser at lower level than at higher altitudes ?

Why is moist air lighter than dry air ?

Short answer question

Why is moist air lighter than dry air ?

What is boiling point of water at (i) higher altitudes, (ii) in pressure cooker ?

Short answer question

What is boiling point of water at (i) higher altitudes, (ii) in pressure cooker ?

Name four measurable properties of gases.

Short answer question

Name four measurable properties of gases.

Name the S.I. unit of pressure and give its definition.

Short answer question

Name the S.I. unit of pressure and give its definition.

Liquid ammonia bottle is cooled before opening the seal. Why ?

Short answer question

Liquid ammonia bottle is cooled before opening the seal. Why ?

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