** Question No : 1**

22.4 litre of any gas at N.T.P. will contain

One gram equivalent

One gram atomic weight

One gram atom

One gram molecule

** Question No : 2**

The vol. of 20 gm. of hydrogen at N.T.P. is

22.4 litres

112 litres

12 litres

224 litres

** Question No : 3**

The V.D. of a gas is 11.2 gm. The volume occupied by 11.2 gm. of this gas at N.T.P. is

12 litre

11.2 litres

2.24 litres

22.4 litres

** Question No : 4**

If the temperature and pressure remain unchanged the volume of ${O}_{2}$obtained by the decomposition of a certain volume of $S{O}_{2}$ will be

Triple the volume of $S{O}_{2}$

Half the volume of $S{O}_{2}$

Equal to the volume of $S{O}_{2}$

One third the volume of $S{O}_{2}$

** Question No : 5**

According to Avogadro's hypothesis equal volumes of two gases under the same conditions of temperature and pressure contain

Equal number of electrons

Equal number of ions

Equal number of atoms

Equal number of molecules

** Question No : 6**

The vapour density of a gas is 11.2. The volume occupied by 2.4 g of the gas at S.T.P wil be

2.4 litres

3.6 litres

2.24 litres

11.2 liters

** Question No : 7**

The number of molecules of $C{O}_{2}$ present in 44 gms. of $C{O}_{2}$ is

6 x ${}^{{10}^{23}}$ approx

${10}^{30}$ approx

3 x ${}^{{10}^{10}}$ approx

12 x ${}^{{10}^{23}}$ approx