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Chemistry

Chemistry
Laughing gas is

Nitrogen trioxide
Nitrous oxide
Nitric oxide
Nitrogen pentoxide

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Chemistry
Philosopher’s Wool is

Zinc carbonate
Zinc blende
Zinc oxide
Zinc sulphate

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Chemistry
What is the mass percentage of oxygen in carbon dioxide (CO2)

0.509
0.658
0.727
0.305

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Chemistry
Which of the following is not present in RNA

Ribose
Uracil
Phosphate
Thymine

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Chemistry
Which of the following is the strongest base in aqueous solution ?

Diethylamine
Ethylamine
Ammonia
Triethylamine

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Chemistry
The formula C6H5-CO-CH3 represents

Acetophenone
Phenyl acetate
Acetic acid
Acetone

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MORE MCQ ON Chemistry

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