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Chemistry

Chemistry
The most volatile of the given liquids is

Ether
Liquid He
Liquid NH3
Liquid

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Chemistry
Which of the following is the petroleum wax ?

Jojoba wax
Paraffin wax
Bees wax
Carnauba wax

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Chemistry
Which one of the following is also known as solution ?

A heterogeneous mixture
A compound
A homogeneous mixture
A suspension

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Chemistry
The quality of petrol is expressed in terms of

Gold number
Cetane number
Octane number
Added unlead compounds

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Chemistry
Food cans are coated with tin and not with zinc because

Zinc has a higher melting point than tin
Zinc is costlier than tin
Zinc is less reactive than tin
Zinc is more reactive than tin

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Chemistry
The name of unreactive gas is

Oxygen
Carbon dioxide
Nitrogen
Hydrogen

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