Verified Solution • 2025–26 Session moderate

QJEEM23Chb43b: JEE Main 2023 Chemistry - Class 11 JEEM23Chb43b Solution: Given below are two statements : one is labelled as Assertion A …

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 :

Multiple Choice Options

  • A Both A and R are true but R is NOT the correct explanation of A
  • B A is false but R is true
  • C A is true but R is false
  • D Both A and R are true and R is the correct explanation of A

Step-by-Step Verified Solution

The correct answer is (A) Both A and R are true but R is NOT the correct explanation of A.

Assertion A is true that hydrogen is an environmentally friendly fuel because when hydrogen is combusted it produces only water vapor and no harmful pollutants or greenhouse gases.

Reason R is also true that the atomic number of hydrogen is 1 and it is a very light element. However, it is not a correct explanation for Assertion A as the environmental friendliness of hydrogen as a fuel is not solely determined by its atomic number or weight, but rather by how it is produced, stored, and transported. The environmental impact of hydrogen as a fuel source depends on various factors, such as the method used for its production and the emissions associated with its transportation and storage.

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