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Chemistry

Chemistry
The ore of Aluminium is

Chalco pyrites
Fluorspar
Bauxite
Hematite

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Chemistry
One of the following is used to dissolve noble metals. That is

Sulphuric acid
Hydrochloric acid
Nitric acid
Aqua ragia

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Chemistry
Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid ?

Methyl red
Methyl orange
Methylene blue
Phenolphthaline

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Chemistry
Which one of the following is not a cause for present global warming and climate change ?

Carbondioxide emission
Deforstation
CFC emission
Methane emission

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Chemistry
Zone refining is used for the purification of

Ge
Au
Cu
Ag

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Chemistry
How many neutrons does iron have

8
13
26
30

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MORE MCQ ON Chemistry

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