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CBSE Notes 2011-2012 » XI-Chemistry

States of Matter : Gases and Liquids

Why is moist air lighter than dry air ?

Short answer question

Why is moist air lighter than dry air ?

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 ?

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

Short answer question

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

The tyre of automobile is inflated to lesser pressure in summer than in winter. Why ?

Short answer question

The tyre of automobile is inflated to lesser pressure in summer than in winter. Why ?

The size of weather balloon becomes larger and larger as it ascends up into higher altitudes. Why ?

Short answer question

The size of weather balloon becomes larger and larger as it ascends up into higher altitudes. Why ?

Which property of liquid is responsible for spherical shape of liquid drops ?

Short answer question

Which property of liquid is responsible for spherical shape of liquid drops ?

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