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Chemistry

Chemistry
The important ore of aluminium is

Haematite
Fluorspar
Bauxite
Cryolite

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Chemistry
The three elements most needed in common fertilisers are :

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

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Chemistry
The fiber least prone to catch fire is

Polyester
Nylon
Terylene
Cotton

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Chemistry
Nucleons are regarded as composites sub-particles known as

Leptons
Mesons
Photons
Quarks

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Chemistry
Chemical name of vinegar is

Acetone
Formaldehyde
Acetic acid
Ethanol

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Chemistry
The metal that is used as a catalyst in the hydrogenation of oils is

Pb
Ni
Cu
Pt

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MORE MCQ ON Chemistry

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