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JEE Main20231 Feb 2023Morning ShiftChemistryHydrogenActual

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 1 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 R are true and R 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: 2 H 2 ( g )   +   O 2 ( g )   →     2   H 2 O ( g )

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