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Chemistry

Chemistry
In silvery paints, the main constituent present is

Lead powder
Silver powder
White lead
Aluminium powder

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Chemistry
Natural rubber is the polymer of :

Butadiene
Isoprene
Styrene
Ethylene

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Chemistry
When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to

N2O
NO2
SO3
SO2

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Chemistry
The most volatile of the given liquids is

Liquid He
Liquid
Liquid NH3
Ether

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Chemistry
Helium gas is filled in ballons because

It is one of the constitutents of water
It is lighter than air
It is a noble gas
Its atomic number is 2

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Chemistry
Silicone is a polymer of

Dialkyl dichloro silane
Silane
Tetraalkyl silane
Silicon tetrachloride

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