- Exam
- JEE Main
- Year
- 2023
- Date
- 10 April
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Hydrogen
JEE Main 2023 · 10 April · Evening 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 : 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:
Options
- ABoth A and R are true and R is the correct explanation of A
- BA is false but R is true
- CA is true but R is false
- DBoth A and R are true but R is NOT the correct explanation of A
Correct answer
A. Both A and R are true and R is the correct explanation of A
Step-by-step solution
The isotopes of hydrogen are protium, deuterium, and tritium, which have different physical properties. For example, deuterium has a higher boiling point and a lower vapor pressure than protium, while tritium is radioactive and has a much shorter half-life than the other two isotopes.
The mass difference between the isotopes of hydrogen is indeed significant, with protium having a mass of atomic mass unit (amu), deuterium having a mass of amu, and tritium having a mass of amu.
So Both A and R are true and R is the correct explanation of A.