Question

o.5 mole of each of H2 , so2 and ch4

Answer 1

H2 - 1 gm

So2 - 32 gm

CH4 - 8 gm.

Answer 2

mass of 1 mol of H2 is 2g
mass of 0.5 mole of H2 is 1g
similarly mass of 0.5mole SO2 is 32g
and mass of 0.5 mole of CH4 is 8g