NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

1 Hard

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Analyzing +4 | -1

Rearrange the following (I to IV) in the order of increasing masses and choose the correct answer from (1), (2), (3) and (4) (Atomic mass:

N=14, O=16, C u=63

).

I. 1 molecule of oxygen

II. 1 atom of nitrogen

III.

1 \times 10^{-10} \mathrm{~g}

molecular weight of oxygen

IV.

1 \times 10^{-10} \mathrm{~g}

atomic weight of copper

View answer and explanation

Correct option: A

II < I < III < IV

Option A is correct because it correctly orders the masses from least to greatest: Nitrogen atom < Oxygen molecule < 1e-10 g Oxygen < 1e-10 g Copper.

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