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Chemistry

Chemistry
The inherited traits of an organism are controlled by

RNA molecules
DNA molecules
enzymes
nucleotides

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Chemistry
The value of gas constant R in Ergs deg–1 mole–1 is

4.183 × 107
8.341 × 107
8.314 × 107
8.413 × 107

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Chemistry
Which of the following is used to denature ethanol ?

Methyl alcohol
Propyl alcohol
Methane
Phenol

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Chemistry
Browning of paper in old books is caused by

Lack of aeration
Frequent use
Oxidation of cellulose
Collection of dust

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Chemistry
The rusting of iron is a/an

None of these
Electrical change
Physical change
Electrochemical change

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Chemistry
Water gas is the mixture of

Carbon monoxide and hydrogen
Carbon dioxide and nitrogen
Carbon dioxide and hydrogen
Carbon monoxide and nitrogen

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MORE MCQ ON Chemistry

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