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Chemistry

Chemistry
The length of double bond is _______ than single bond

Shorter
Of same lenght
None of these
Longer

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Chemistry
The polymer used in making plastic crockery is

Bakelite
Decron
Melamine
Nylon

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Chemistry
Among the following, carbonate ore of Zinc is

Zincblende
Sphalerite
Calamine
Zincite

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Chemistry
In silvery paints, the main constituent present is

Silver powder
Aluminium powder
White lead
Lead powder

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Chemistry
Which one of the following metals is used to galvanise iron ?

Zinc
Mercury
Lead
Copper

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Chemistry
The most abundant inert gas in the atmosphere is

Helium
Argon
Krypton
Neon

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