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Chemistry

Chemistry
The first organic compound synthesised in the laboratory was

Lactic acid
Urea
Glucose
Uric acid

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Chemistry
The percentage of nitrogen present in ammonium sulphate is :

0.305
0.18
0.25
0.27

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Chemistry
Which of the following is not a gaseous air pollutant?

Oxides of nitrogen
Smoke
Oxides of sulphur
Hydrocarbon

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Chemistry
Biofertilizers convert nitrogen to ________ .

Ammonia
Nitrates
Amino acids
Nitrogenase

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Chemistry
Browning of paper in old books is caused by

Oxidation of cellulose
Collection of dust
Lack of aeration
Frequent use

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Chemistry
Gobar gas contains mainly :

Acetylene
Methane
Ethylene
Propylene

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MORE MCQ ON Chemistry

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