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Chemistry

Chemistry
The length of double bond is _______ than single bond

Of same lenght
Longer
None of these
Shorter

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Chemistry
Hardness of the water is commonly measured in terms of

Magnesium sulphate equivalents
Calcium sulphate equivalents
Magnesium carbonate equivalents
Calcium carbonate equivalents

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Chemistry
Gas released during Bhopal tragedy was :

Methyl isothiocyanate
Sodium isothiocyanate
Ethyl isothiocyanate
Potassium isothiocyanate

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Chemistry
Pyrethrin used in mosquito coil is obtained from

A fungus
A bacterium
An insect
A seed plant

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Chemistry
The inert gas used as beacon light is

Ar
He
Ne
Kr

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Chemistry
Sodium bicarbonate is commercially known as

Baking soda
Washing soda
Soda lime
Caustic soda

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