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Chemistry

Chemistry
One carat of diamond is equal to

100 mg
250 mg
150 mg
200 mg

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Chemistry
The percentage of oxygen in air is approximately

0.78
0.01
1
0.21

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Chemistry
Sulphuric acid is

Dibasic
Tribasic
Monobasic
Tetrabasic

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Chemistry
The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ?

18
12
Zero
6

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Chemistry
Which of the following is used in making smoke bombs?

Hydrogen
Carbon
Phosphorus
Sulphur

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Chemistry
The number of moles of solute present in 1 kg of a solvent is called its

normality
formality
molality
molarity

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MORE MCQ ON Chemistry

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