Question

Active mass of 2 mole of Nacl kept in 4 litre vessel at NTP is

1. 1
2. 2
3. 1/2
4. NOTA

Answer 1

If you calculate it with the help of formula i.e mol/vol(lit) the answer will be two.But this is not correct as the active mass of solids is always taken as 1 because density and molecular mass of solid are constant. So in the conclusion the answer will be 1.

Answer 2

option 1 is right answer