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Chemistry

Chemistry
Which mineral is the ore of aluminium ?

Bauxite
Haematite
Siderite
Magnetite

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Chemistry
Aluminium can be purified by

Distillation
Ozonolysis
Oxidation
Electrolysis

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Chemistry
The percentage of Nitrogen in Air is

78.03
0.94
85.02
0.03

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Chemistry
Copper is refined by

Roasting
Electrolysis
Zone refining
Oxidation

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Chemistry
The unit to measure the flow of water is

Ohm meter
Cusecs
Micro Mho
Milli curie

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Chemistry
Hard steel contains

0.1 to 0.4 per cent carbon
2 to 5 per cent carbon
0.5 to 1.5 per cent carbon
0.01 to 0.04 per cent carbon

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MORE MCQ ON Chemistry

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