In case of hydrogen and oxygen at (NTP), which of the following is the same for both ?

In case of hydrogen and oxygen at N.T.P., which of he following quantities is/are not same ?

Oxygen is 16 times heavier than hydrogen. At NTP equal volumn of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is

Oxygen is 16 times heavier than hydrogen. At NTP equal volumn of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is

Given sample of 1 c.c. of hydrogen and 1 cm^3 of oxygen both at NTP. Which sample has larger number of molecules.

Consider a collision between oxygen molecule and hydrogen molecule in a mixture of oxygen and hydrogen kept at room temperature. Which of the following are possible

A sample of oxygen at NTP has volume V and a sample of hydrogen at NTP has the volume 4V. Both the gases are mixed. If the speed of sound in hydrogen at NTP is 1270 m/s, that in mixture is

A sample of oxygen at NTP has volume V and a sample of hydrogen at NTP has the volume 4V. Both the gases are mixed. If the speed of sound in hydrogen at NTP is 1270 m/s, that in mixture is

Given samples of 1cm^(3) of Hydrogen and 1cm^(3) of Oxygen both at N.T.P., which sample has larger number of molecules