If the mass ratio of `H_2` and `CH_4`in a mixture is 1:4, then their mole ratio will be

If the mass ratio of O_2 and N_2 is 4:7 , then the ratio of their moles is

The ratio of velocities of diffusion of gases A and B is 1 : 4 . If the ratio of their masses present in the mixture is 2 : 3 , calculate the ratio of their mole fractions.

A compound contains elements X and Y in 1 : 4 mass ratio. If the atomic masses of X and Y are in ratio 1 : 2, then empirical formula will be

Mole ratio of H_2 and O_2 gas is 8 : 1 what will be the ratio of wt. :

The ratio of the masses of methane and ethane in a gas mixture is 4:5 . The rate of number of their molecules in the mixture is:

In a saturated acyclic compound the mass ration of C:H is 4:1 and C:O is 3:4. find the no. of moles of O_2 required to react with 2 moles compound to give CO_2 and water.

If the densities of methane and oxygen are in the ratio 1 : 2 , the ratio of rate diffusion of O_(2) and CH_(4) is respectively

If the heights of two cones are in the ratio of 1:4 and the radii of their bases are in the ratio 4:1, then the ratio of their volumes is (a) 1:2 (b) 2:3 (c) 3:4 (d) 4:1

HCOOH and CH_(3)COOH solutions have equal pH. If K_(1)//K_(2) is 4 , the ratio of their molar concentration will be

Ethylene is profuced by C_(4)H_(8)("cyclobutane")overset(Delta)rarr2C_(2)H_(4) The rate constant is 2.48 xx 10^(-4)s^(-1) . In what time will the molar ratio of the ethylene to cyclobutane in reaction mixture attain the value (a) 1 (b) 100 ?