1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which of the following complex ions is expected to absorb visible light?
(At. nos. Zn = 30, Sc = 21, Ti = 22, Cr = 24)
A
[Ti(en)2(NH3)2]4+
B
[Cr(NH3)6]3+
C
[Zn(NH3)6]2+
D
[Sc(H2O)3(NH3)3]3+
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
10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be
A
3 mol
B
4 mol
C
1 mol
D
2 mol