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Chemistry

Chemistry
Which of the following fibres catches fire least ?

Terricot
Cotton
Nylon
Rayon

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Chemistry
Which one of the following gases has the highest calorific value?

Coal gas
Natural gas
Water gas
Indane gas

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Chemistry
Which component referred to as 'Milk sugar'?

Sucrose
Lactose
Galactose
Maltose

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Chemistry
The most abundant element by number in the living system is :

Oxygen
Hydrogen
Carbon
Nitrogen

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Chemistry
The molecular mass of a gas is

Not related to its vapour pressure
Equal to its vapour pressure
Twice its vapour pressure
Half its vapour pressure

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Chemistry
'Plaster of Paris' is made by partial dehydration of

Blue vitriol
Green vitriol
Epsom salt
Gypsum salt

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