1
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
The enthalpy of fusion of water is 1.435 kcal/mol. The molar entropy change for the melting of ice at 0oC is
A
10.52 cal/(mol K)
B
21.04 cal/(mol K)
C
5.260 cal/(mol K)
D
0.526 cal/(mol K)
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
pH of a saturated solution of Ba(OH)2 is 12. The value of solubility product (Ksp) of Ba(OH)2 is
A
3.3 $$ \times $$ 10$$-$$7
B
5.0 $$ \times $$ 10$$-$$7
C
4.0 $$ \times $$ 10$$-$$6
D
5.0$$ \times $$ 10$$-$$6
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
Buffer solutions have constant acidity and alkalinity because
A
these give unionised acid or base on reaction with added acid or alkali
B
acids and alkalies in these solutions are shielded from attack by other ions
C
they have large excess of H+ or OH$$-$$ ions
D
they have fixed value of pH
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the following compounds the one that is most reactive towards electrophilic nitration is
A
benzoic acid
B
nitrobenzene
C
toluene
D
benzene