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Chemistry

Chemistry
Commercial Vaseline is derived from

Plant gums
Coal tar
Petroleum
Wool wax

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Chemistry
________ gives hardness to stainless steel.

Carbon
Zinc
Tin
Lead

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Chemistry
The chemical substance present in bones and teeth is

Calcium chloride
Calcium borate
Calcium sulphate
Calcium phosphate

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Chemistry
Rock salt is a mineral containing

Potassium
Magnesium
Sodium
Iron

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Chemistry
Two electrons in an orbital are differentiated by which of the following ?

Magnetic quantum number
Azimuthal quantum number
Principal quantum number
Spin quantum number

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Chemistry
The acid which fails to liberate carbon dioxide from sodium bicarbonate is :

Carbonic acid
Formic acid
Sulphuric acid
Acetic acid

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