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Chemistry

Chemistry
Highest percentage of carbon is found in which form of coal?

Lignite
Anthracite
Peat
Bituminous

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Chemistry
The atmospheric gas that is mainly responsible for Green House effect :

Ozone
Oxygen
Nitrogen
Carbondioxide

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Chemistry
Bauxite is used as raw material by which industry ?

Gold
Steel
Iron
Aluminium

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Chemistry
Which among the following is found in chlorophyll ?

Fe2+
Mg2+
A l3+
Ca2+

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Chemistry
Maximum permissible concentration of total hardness in drinking water is

50
500
100
200

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Chemistry
Gelatin is mostly used in making ice–creams in order to

Stabilise the colloid and prevent crystallisation
Enrich the aroma
Prevent making a colloid
Stabilise mixture

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MORE MCQ ON Chemistry

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