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Chemistry

Chemistry
The strongest acid of the following is

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

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Chemistry
Glycol is used to manufacture which of the following ?

Artificial silk
Nylon
Terylene
Rubber

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Chemistry
The maximum number of isomers for an alkene with molecular formula C4H8 is

3
4
5
2

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Chemistry
High concentration hydrocarbon pollutants in atmospheric air causes

Cancer
Respiratory diseases (e.g.asthma)
Silicosis
Reduced crop yield

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Chemistry
The heat energy produced when the human body metabolises 1 gram of fat is

1 KJ
39 KJ
29 KJ
30 KJ

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Chemistry
The nuclear particles which are assumed to hold the nucleons together are

positrons
mesons
electrons
neutrons

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