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Chemistry

Chemistry
The length of double bond is _______ than single bond

None of these
Shorter
Of same lenght
Longer

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Chemistry
Commercial Vaseline is derived from

Wool wax
Plant gums
Coal tar
Petroleum

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Chemistry
The metal used for making aircrafts and rockets is

Lead
Nickel
Aluminium
Copper

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Chemistry
Which of the following substance is highly plastic ?

Mica
Granite
Quartz
Clay

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Chemistry
Besides CO2, the other green house gas is

O2
N2 N2
Ar Ar
CH4

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Chemistry
Many people died in London in 1952 as result of air pollution producing

Mist
Smog
Sleet
Fog

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