1
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

The relative lowering of vapour pressure of a dilute aqueous solution containing non-volatile solute is 0.0125. The molality of the solution is about

A
0.70
B
0.50
C
0.90
D
0.80
2
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

The molar heat of vaporisation of water at 100$$^\circ$$C is 40.585 kJ/mol. The temperature at which a solution containing 5.60 g of Al2(SO4)3 per 1000 g of water boil is __________. (Assuming the degree of ionisation of salt to be 1).

A
1000.042$$^\circ$$C
B
10.0042$$^\circ$$C
C
100.042$$^\circ$$C
D
105$$^\circ$$C
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