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Chemistry

Chemistry
Rock salt is a mineral containing

Iron
Magnesium
Sodium
Potassium

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Chemistry
Heavy metals got their name because compared to other atoms they have

Higher atomic masses
Higher atomic numbers
Higher densities
Higher atomic radii

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Chemistry
Element 106 was discovered by

Seaborg
Lawrence
Rutherford
Kurchatove

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Chemistry
'Vinegar' is a commercial name of

Hydrochloric acid
Oxalic acid
Citric acid
Acetic acid

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Chemistry
The chief source of naphthalene is

Diesel
Coal-tar
Charcoal
Camphor

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Chemistry
Ozone layer of atmosphere absorbs:

Cosmic rays.
Ultraviolet rays
Infra-red rays
All radiations of Light

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MORE MCQ ON Chemistry

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