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Chemistry

Chemistry
The term 'brown air' is used for

Sulphurous smog
Acid fumes
Industrial smog
Photochemical smog

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Chemistry
Cement is formed by strongly heating a mixture of

Limestone and graphite
Limestone and clay
Chalk and graphite
Clay and graphite

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Chemistry
Atoms of same element having different mass numbers are called________

Isomers
Isotones
Isotopes
Isobars

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Chemistry
An emulsion is a colloid of a

Liquid in a gas
Gas in a liquid
Liquid in a liquid
Gas in a solid

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Chemistry
Tetra ethyle lead (TEL) is

An antiknock compound
A catalyst in burning fossil fuel
A reductant
An antioxidant

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Chemistry
Candle is a mixture of

Higher fatty acids and stearic acid
Bees wax and stearic acid
Paraffin was and stearic acid
Bees wax and paraffin wax

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