Assertion `:-` At constant temperature `PV` vs `V` plot for real gas is not a straight line.
Reason `:-` At high pressure, all gases have `Zgt1` but at low pressure most gases have `Zlt1`

Assertion : At constant temperature PV vs P plot for real gases is not a straight line . Reason : In the curves of dihydrogen and helium , as the pressure increases the value of PV also increases .