1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which of the following does not show optical isomerism?

(en = ethylenediamine)
A
[Co(NH3)3Cl3]0
B
[Co(en)Cl2(NH3)2]+
C
[Co(en)3]3+
D
[Co(en)2Cl2]+
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The dissociation constants for acetic acid and HCN at 25oC are 1.5 $$ \times $$ 10$$-$$5 and 4.5 $$ \times $$ 10$$-$$10 respectively. The equilibrium constant for the equilibrium
CN$$-$$ + CH3COOH $$\rightleftharpoons$$ HCN + CH3COO$$-$$ would be
A
3.0 $$ \times $$ 10$$-$$5
B
3.0 $$ \times $$ 10$$-$$4
C
3.0 $$ \times $$ 104
D
3.0 $$ \times $$ 105
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Maximum number of electrons in a subshell of an atom is determined by the following
A
2$$l$$ + 1
B
4$$l$$ $$-$$ 2
C
2n2
D
4$$l$$ + 2
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Amongst the elements with following electronic configurations, which one of them may have the highest ionisation energy ?
A
Ne [3s2 3p2]
B
Ar [3d10 4s2 4p3]
C
Ne [3s2 3p1]
D
Ne [3s2 3p3]