1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A solution of sucrose (molar mass = 342 g mol$$-$$) has been prepared by dissolving 68.5 g of sucrose in 1000 g of water. The freezing point of the solution obtained will be (Kf for water = 1.86 K kg mol$$-$$1)
A
$$-$$ 0.372oC
B
$$-$$ 0.520oC
C
+ 0.372oC
D
$$-$$ 0.570oC
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
An aqueous solution is 1.00 molal in KI. Which change will cause the vapour pressure of the solution to increase?
A
Addition of NaCl
B
Addition of Na2SO4
C
Addition of 1.00 molal KI
D
Addition of water
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to
A
increase in ionic mobility of ions
B
100% ionisation of electrolyte at normal dilution
C
increase in both i.e., number of ions and ionic mobility of ions
D
increase in number of ions.
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
For the reduction of silver ions with copper metal, the standard cell potential was found to be + 0.46 V at 25oC. The value of standard Gibb's energy, $$\Delta $$Go will be
(F = 96500 C mol$$-$$1)
A
$$-$$ 89.0 kJ
B
$$-$$ 89.0 J
C
$$-$$ 44.5 kJ
D
$$-$$ 98.0 kJ
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