1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
0.5 molal aqueous solution of a weak acid (HX) is 20% ionised. If Kf for water is 1.86 K kg mol$$-$$1, the lowering in freezing point of the solution is
A
0.56 K
B
1.12 K
C
$$-$$ 0.56 K
D
$$-$$ 1.12 K
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
A solution containing 10 g per dm3 of urea (molecular mass = 60 g mol$$-$$1) is isotonic with a 5% solution of a nonvolatile solute is
A
200 g mol$$-$$1
B
250 g mol$$-$$1
C
300 g mol$$-$$1
D
350 g mol$$-$$1
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
During osmosis, flow of water through a semipermeable membrane is
A
from solution having lower concentration only
B
from solution having higher concentration only
C
from both sides of semipermeable membrane with equal flow rates
D
from both sides of semipermeable membrane with unequal flow rates.
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
A solution of acetone in ethanol
A
obeys Raoult's law
B
shows a negative deviation from Raoult's law
C
shows a positive deviation from Raoult's law
D
behaves like a near ideal solution.
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