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Chemistry

Chemistry
Which of the toxic heavy metals is found in modern tannery industries ?

Chromium
Nickel
Zinc
Lead

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Chemistry
If the equilibrium constants for the systems H2 + I2 ? 2HI and 2HI ? H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is :

K 1 = 1 /K2
K1 = K2
K1 = 2K2
K1 = K2/2

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Chemistry
What is a common name for the substance which irritates lachrymal glands ?

Anaesthetic Gas
Noble Gas
Tear Gas
Laughing Gas

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Chemistry
Water gas is the mixture of

Carbon dioxide and nitrogen
Carbon monoxide and hydrogen
Carbon monoxide and nitrogen
Carbon dioxide and hydrogen

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Chemistry
Ultra purification of a metal is done by :

Slugging
Leaching
Zone melting
Smelting

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Chemistry
Spirit in contact with body gives cool sensation because it is :

Liquid
Highly volatile
Transparent
A good conductor

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MORE MCQ ON Chemistry

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