Freezing point of a 4% aqueous solution of X is equal to freezing point of 12% aqueous solution of Y. If molecular weight of X is A, then molecular weight of Y is
a.
A
b.
3A
c.
4A
d.
2A
a.
A
b.
3A
c.
4A
d.
2A
Question ID - 52338 | SaraNextGen Top Answer Freezing point of a 4% aqueous solution of X is equal to freezing point of 12% aqueous solution of Y. If molecular weight of X is A, then molecular weight of Y is
a.
A
b.
3A
c.
4A
d.
2A
Freezing point of a 4% aqueous solution of X is equal to freezing point of 12% aqueous solution of Y. If molecular weight of X is A, then molecular weight of Y is
|
a. |
A |
b. |
3A |
|
c. |
4A |
d. |
2A |
1 Answer
127 votes
Answer Key / Explanation : (b) -
For same freezing point, molality of both solutions should be same.
Mx = My
= 
or, My = 
= 3.27 A
Closest option is 3A.
127 votes
Answer Link
127