Pick out the wrong statement.

• Heat capacity of a diatomic gas is higher than that of a monoatomic gas.
• Equal volumes of Argon and Krypton contain equal number of atoms.
• Total number of molecules contained in 22.4 litres of hydrogen at NTP is 6.023 x 1023.
• The binary mixture of a particular com-positidn in both vapor and liquid state is known as an azeotropic mixture