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Chemistry

Chemistry
________ is used for making vinegar.

Malic acid
Acetic acid
Tartaric acid
Oxalic acid

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Chemistry
The iron ore magnetite consists of

3Fe2O3 .. 3H2O
FeCO3
Fe3OH4
Fe2O3

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Chemistry
The most abundant element by number in the living system is :

Carbon
Nitrogen
Oxygen
Hydrogen

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Chemistry
Synthetic detergents are made from

Sodium stearate
Sodium salt of benzene carboxylic acid
Sodium palmitate
Sodium salt of benzene sulphonic acid

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Chemistry
KMnO4 can be used as a/an

Disinfectant
Fertiliser
Pesticide
Insecticide

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Chemistry
Mercury is emitted into air by

Steam engine
Burning garbage
Burning coal
Coal fire

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MORE MCQ ON Chemistry

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