1
IIT-JEE 2007 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1
STATEMENT-1 : Band gap in germanium is small.

STATEMENT-2 : The energy gap of each germanium atomic energy level is infinitesimally small.
A
Statement - 1 is True, Statement - 2 is True; Statement - 2 is a correct explanation for Statement - 1
B
Statement - 1 is True, Statement - 2 is True; Statement - 2 is not a correct explanation for Statement - 1
C
Statement - 1 is True, Statement - 2 is False
D
Statement - 1 is False, Statement - 2 is True
2
IIT-JEE 2007 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1
Consider a reaction aG + bH $$\to$$ Products. When concentration of both the reactants G and H is doubled, the rate increases by eight times. However, when concentration of G is doubled keeping the concentration of H fixed, the rate is doubled. The overall order of the reaction is
A
0
B
1
C
2
D
3
3
IIT-JEE 2007 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

Among the following metal carbonyl, the C-O bond order is lowest in

A
$$\mathrm{[Mn(CO)_6]^+}$$
B
$$\mathrm{[Fe(CO)_5]}$$
C
$$\mathrm{[Cr(CO)_6]}$$
D
$$\mathrm{[V(CO)_6]^-}$$
4
IIT-JEE 2007 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Moreover, the solution of metal ion treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is:

A
Pb$$^{2+}$$
B
Hg$$^{2+}$$
C
Cu$$^{2+}$$
D
Co$$^{2+}$$

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