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JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

1 Hard

1 of 1

Application +4 | -1

The most abundant elements by mass in the body of a healthy human adult are Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75 kg person would gain if all

{}^1H

atoms are replaced by

{}^2H

atoms is

View answer and explanation

Correct option: C

7.5 kg

Option C (7.5 kg) is correct because it is the mass gain calculated by replacing all

{}^1H

atoms with

{}^2H

atoms.

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