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Chemistry

Chemistry
How many neutrons does iron have

8
13
26
30

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Chemistry
The greenhouse effect is caused by the higher level of which gas in the atmosphere ?

Carbon dioxide
Sulphur dioxide
Carbon monoxide
Nitrous oxide

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Chemistry
The most suitable unit for expressing nuclear radius is :

Micron
Fermi
Nanometre
Angstrom

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Chemistry
The element used for making solar cells is

Magnesium
Calcium
Sodium
Silicon

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Chemistry
The strongest acid of the following is

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

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Chemistry
Among the following, which is always found in free-state in nature?

Sodium
Silver
Copper
Gold

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MORE MCQ ON Chemistry

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