NEET Chemistry MCQs

A 20 L vessel contains 0.1 mole of $O_2$ at 300 K. $O_3$ is prepared in the vessel by subjecting $O_2$ to silent electric discharge till the volume is reduced to 15 L at 300K. What is the number of moles of $O_3$ formed?

Two flasks A and B have equal volumes. Flask A contains H2 at 2 atm and 300K. Flask B contains an equal mass of CH4 at 600 K. Assuming ideal behavior, the ratio of the number of molecules in flask A to flask B is:

Equal volumes of all gases, at the same temperature and pressure, contain the same number of molecules. This is a statement of:

Equal volumes of two gases are kept in separate containers at the same temperature and pressure. Then:

Equal volumes of two gases are kept in separate containers at the same temperature and pressure. Then:

Based on kinetic theory of gases following laws can be proved

Based on kinetic theory of gases following laws can be proved

1.0 L of ${N_2}$ and 7/8 L of ${O_2}$ at the same temperature and pressure were mixed together. What is the relation between the masses of the two gases in the mixture?

A preweighted vessel was filled with ${\rm{C}}{{\rm{O}}_2}$ at STP and weighed. It was then evaluated, filled with ${\rm{S}}{{\rm{O}}_2}$ at the same temperature and pressure and again weighted. The weight of the ${\rm{C}}{{\rm{O}}_2}$ will be

1.0 L of ${N_2}$ and 7/8 L of ${O_2}$ at the same temperature and pressure were mixed together. What is the relation between the masses of the two gases in the mixture?