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Chemistry

Chemistry
In electro-refining, the pure metal is deposited on

Vessel
Cathode
Anode
Electrolyte

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Chemistry
The name of plastic polymer from which combs, toys, bowls etc., can be made, is

Polyurethane
Polystyrene
Teflon
Metallic polysulphides

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Chemistry
Main pollutants released from iron and steel industry are

CO, CO2 and SO2
NO, SO3 and H2S
CO2, NO2 and SO3
CO2, H2S and NO2

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Chemistry
‘Aerosol’ is known as

Pollutant gas, present in air
Microbes, present in air
Green house gas present in air
Suspended solid particles in air

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Chemistry
Vinegar is an aqueous solution of

Hydrochloric acid
Oxalic acid
Acetic acid
Citric acid

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Chemistry
Oxide of sulphur present in the atmosphere are washed down by rains to cause :

Industrial smog formation
Lowering of pH of soil
Eutrophication in lakes
Depletion of fossil fuel reserves

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MORE MCQ ON Chemistry

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