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JEE Main 20231 FebruaryMorning Shift
Exam
JEE Main
Year
2023
Date
1 February
Shift
Morning Shift
Subject
Chemistry
Chapter
Hydrogen

JEE Main 2023 · 1 February · Morning Shift · Chemistry · Hydrogen

Given below are two statements: one is labelled as Assertion A and...

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

Assertion A: Hydrogen is an environment friendly fuel.

Reason R: Atomic number of hydrogen is 11 and it is a very light element.
In the light of the above statements, choose the correct answer from the options given below

Options

  1. AA is true but R is false
  2. BBoth A and R are true but R is NOT the correct explanation of A
  3. CA is false but R is true
  4. DBoth A and RR are true and RR is the correct explanation of A

Correct answer

B. Both A and R are true but R is NOT the correct explanation of A

Step-by-step solution

No pollution occurs by combustion of hydrogen and it has very low density.
Combustion of hydrogen produces water by the following reaction:
2H2(g)+O2(g)→2H2O(g)2{H}_{2} ( g ) + {O}_{2} ( g ) \to 2{H}_{2}O ( g )
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