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Chemistry

Chemistry
Galvanised iron is made by coating iron with

Sulphur
Zinc
Chromium
Nickel

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Chemistry
Which one of the following is not coal variety?

Dolomite
Bituminous
Peat
Lignite

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Chemistry
'Plaster of Paris' is made by partial dehydration of

Gypsum salt
Epsom salt
Green vitriol
Blue vitriol

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Chemistry
White phosphorus is generally kept under

Kerosene oil
Alcohol
Water
Glycerine

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Chemistry
Milk tastes sour when it is left in open for some time. This happens due to the formation of

Carbonic acid
Lactic acid
Citric acid
Acetic acid

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Chemistry
Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be

1 : 1 : 1
2 : 16 : 2
2 : 16 : 1
1 : 16 : 2

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