1
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
2
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
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 reaction N2O5(g) $$ \to $$  2NO2(g) + 1/2O2(g)
the value of rate of disappearance of N2O5 is given as 6.25 $$ \times $$ 10$$-$$3 mol L$$-$$1 s$$-$$1. The rate of formation of NO2 and O2 is given respectively as
A
6.25 $$ \times $$ 10$$-$$3 mol L$$-$$1 s$$-$$1 and
6.25 $$ \times $$ 10$$-$$3 mol L$$-$$1 s$$-$$1
B
1.25 $$ \times $$ 10$$-$$2 mol L$$-$$1 s$$-$$1 and
3.125 $$ \times $$ 10$$-$$3 mol L$$-$$1 s$$-$$1
C
6.25 $$ \times $$ 10$$-$$3 mol L$$-$$1 s$$-$$1 and
3.125 $$ \times $$ 10$$-$$3 mol L$$-$$1 s$$-$$1
D
1.25 $$ \times $$ 10$$-$$2 mol L$$-$$1 s$$-$$1 and
6.25 $$ \times $$ 10$$-$$3 mol L$$-$$1 s$$-$$1
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