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Chemistry

Chemistry
Citric acid is present in free form in

Milk
Apple
Tamarind
Lemon

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Chemistry
Food cans are coated with tin and not with zinc because

Zinc is more reactive than tin
Zinc is less reactive than tin
Zinc is costlier than tin
Zinc has a higher melting point than tin

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Chemistry
Number of neutrons in an atom of hydrogen is

Three
One
Zero
Two

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Chemistry
________ is used for making vinegar.

Tartaric acid
Malic acid
Oxalic acid
Acetic acid

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Chemistry
Cement is formed by strongly heating a mixture of

Clay and graphite
Limestone and clay
Chalk and graphite
Limestone and graphite

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Chemistry
The electronic configuration of an atom having atomic number ‘20’ is

2, 6, 8, 4
2, 8, 8, 2
2, 10, 8
2, 8, 10

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MORE MCQ ON Chemistry

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