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Chemistry

Chemistry
The strongest acid of the following is

P-nitrophenol
M-nitrophenol
P-chlorophenol
O-nitrophenol

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Chemistry
Mercury is emitted into air by

Steam engine
Burning garbage
Burning coal
Coal fire

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Chemistry
In a Carbonyl group a carbon atom makes double bond with

Oxygen
None of these
Carbon
Hydrogen

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Chemistry
Which of the following is very reactive and kept in kerosene?

Sodium
Bromine
Iodine
Potassium

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Chemistry
Cement is usually a mixture of :

Calcium aluminate and calcium ferrate
Lime stone and silicon dioxide
Calcium silicate and calcium ferrate
Calcium silicate and calcium aluminate

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Chemistry
The percentage of Nitrogen in Air is

85.02
0.03
0.94
78.03

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MORE MCQ ON Chemistry

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