Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Physical properties of isotopes of hydrogen are different.
Reason R: Mass difference between isotopes of hydrogen is very large.
In the light of the above statements, choose the correct answer from the options given below:

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

Answer 1

The Correct Option is D

The physical properties of hydrogen isotopes, such as their boiling point, melting point, and density, differ because they have different masses.
The mass differences between hydrogen isotopes (protium, deuterium, and tritium) are significant enough to influence their physical characteristics.
Therefore, Assertion A is true, and Reason R is also true, with Reason R providing the correct explanation for Assertion A.