Question

a)the ratio between the masses of equal volume of gas and hydrogen under the same condition of pressure and temperature is
a) relative atomic mass
b) relative molecular mass
c) molecular mass
d) vapour density​

Answer 1

Answer:

d) vapour density

Explanation:

it is the definition of vapour density (V.D.)

Answer 2

a)the ratio between the masses of equal volume of gas and hydrogen under the same condition of pressure and temperature is

Answer

d) vapour density​