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Chemistry

Chemistry
Bleaching powder is used in drinking water as a/an

Antibiotic
Antiseptic
Disinfectant
Coagulant

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Chemistry
If water smells bad, then that odour can be removed by adding

Bleach
Activated carbon
Deactivated nitrogen
Alum

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Chemistry
The strongest acid of the following is

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

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Chemistry
What is the atomic number of mercury

32
80
63
41

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Chemistry
In silvery paints, the main constituent present is

Aluminium powder
White lead
Lead powder
Silver powder

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Chemistry
Nitrogen in water is commonly found in the form of

Nitrous oxide
Nitrite
Nitric oxide
Nitrate

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