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JEE MAIN 2021
24-02-2021 S2
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 R : Hydrogen is the lightest element. In the light of the above statements, choose the correct answer from the options given below :
Select the correct option:
A
A is true but R is false
B
Both A and R are true and R is the correct explanation of A
C
A is false but R is true
D
Both A and R are true but R is NOT the correct explanation of A
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
Most abundant gas in the troposphere is nitrogen
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