1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
The cell membranes are mainly composed of
A
fats
B
proteins
C
phospholipids
D
carbohydrates
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Electrolytic reduction of nitrobenzene in weakly acidic medium gives
A
N-phenylhydroxylamine
B
nitrosobenzene
C
aniline
D
p-hydroxyaniline.
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
A solution of urea (mol. mass 56 g mol$$-$$1) boils at 100.18oC at the atmospheric pressure. If Kf and Kb for water are 1.86 and 0.512 K kg mol$$-$$1 respectively, the above solution will freeze at
A
0.654oC
B
$$-$$ 0.654oC
C
6.54oC
D
$$-$$6.54oC
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
4.5 g of aluminium (at. mass 27 amu) is deposited at cathode from Al3+ solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from H ions in solution by the same quantity of electric charge will be
A
44.8 L
B
22.4 L
C
11.2 L
D
5.6 L