Assertion (A): PV/T=constant for 1 gram of gas. This constant varies from gas to gas.

Reason (R):1 gram of different gases at NTP occupy different volumes.

• A

  Both assertion (A) and reason (R) are correct and R gives the correct explanation

• B

  Both assertion (A) and reason (R) are correct but R does not give the correct explanation

• C

  A is true but R is false

• D

  Both A and R are false