1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
The energy of second Bohr orbit of the hydrogen atom is $$-$$328 kJ mol$$-$$1; hence the energy of fourth Bohr orbit would be
A
$$-$$ 41 kJ mol$$-$$1
B
$$-$$82 kJ mol$$-$$1
C
$$-$$164 kJ mol$$-$$1
D
$$-$$1312 kJ mol$$-$$1
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
For a first order reaction A $$ \to $$ B the reaction rate a reactant concentration of 0.01 M is found to be 2.0 $$ \times $$ 10$$-$$5 mol L$$-$$1 s$$-$$1. The half-life period of the reaction is
A
30 s
B
220 s
C
300 s
D
347 s
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
The cell membranes are mainly composed of
A
fats
B
proteins
C
phospholipids
D
carbohydrates
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which functional group participates in disulphide bond formation in proteins?
A
Thioester
B
Thioether
C
Thiol
D
Thiolactone
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