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Chemistry

Chemistry
The structure of (HPO3)3 is

Octahedral
Linear
Tetrahedral
Cyclic

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Chemistry
The major constituent of air is

carbon dioxide
oxygen
nitrogen
hydrogen

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Chemistry
The function of skimming tank in sewage treatment is to remove

Inorganic substances
Gritty substances
Oil and fatty substances
Suspended solids

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

Carbondioxide
Nitrogen
Ozone
Oxygen

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Chemistry
The three elements most needed in common fertilisers are :

Nitrogen, Potassium and Phosphorous
Sulphur, Phosphorous and Sodium
Calcium, Phosphorous and Potassium
Phosphorous, Sodium and Nitrogen

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Chemistry
KMnO4 can be used as a/an

Fertiliser
Pesticide
Insecticide
Disinfectant

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MORE MCQ ON Chemistry

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