Given below are two statements : one is labelled as Assertion

Question:

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Hydrogen is the most abundant element in the Universe, but it is not the most abundant gas in the troposphere.

Reason $\mathbf{R}$ : Hydrogen is the lightest element. In the light of the above statements, choose the correct answer from the options given below :

  1. $\mathbf{A}$ is true but $\mathbf{R}$ is false

  2. Both $\mathbf{A}$ and $\mathbf{R}$ are true and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$

  3. $\mathbf{A}$ is false but $\mathbf{R}$ is true

  4. Both $\mathbf{A}$ and $\mathbf{R}$ are true but $\mathbf{R}$ is NOT the correct explanation of $\mathbf{A}$

Correct Option: 2,

Solution:

Most abundant gas in the troposphere is nitrogen.

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