Answers

2015-07-17T12:48:01+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Let us consider density of A be x and density of B be y.
given molecular wt of A=M
given x=3y
molecular wt of A by volume of A=3xmolecular wt of B by volume of B
but if we consider 1 mole of gases they occupy 22.4lit volume for all gases
from above we can say that 
MOLECULAR WT OF B = ONE THRD OF MOLECULAR WT OF A
                                    =1by 3 x M
2 5 2