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Chemistry

Chemistry
A subshell with l=2 can take up

5 electron
8 electron
3 electron
10 electron

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Chemistry
The first organic compound synthesised in the laboratory was

Glucose
Urea
Lactic acid
Uric acid

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Chemistry
The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

1/8
1/4
1/6
1/3

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Chemistry
Williamson's synthesis is widely used in the laboratory preparation of

Esters
Aldehydes
Ethers
Alcohols

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Chemistry
Normal rainwater is slightly acidic due to the presence of

Carbon dioxide
Sulphur dioxide
Methane
None of these

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Chemistry
Which gas is used for converting vegetable oils into saturated fats ?

H2
O2
Cl2
SO2

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MORE MCQ ON Chemistry

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