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The most abundant constituent in air is _________.

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The most abundant constituent in air is _________.
1. Oxygen
2. Water
3. Nitrogen
4. Carbon dioxide
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Correct Answer - Option 3 : Nitrogen

The correct answer is Nitrogen.

  • The most abundant constituent in the air is Nitrogen.

Permanent Gases of the Atmosphere

Constituent

Per cent by Volume

Nitrogen (N2)

78.084

Oxygen (O2)

20.946

Argon (Ar)

0.934

Carbon dioxide (CO2)

0.036

Neon (Ne)

0.00182

Helium (He)

0.000524

Krypton (Kr)

0.000114

Hydrogen (H2)

0.00005
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