1
IIT-JEE 2006
MCQ (Single Correct Answer)
+3
-0

Match the extraction processes listed in Column I with metals listed in Column II.

Column I Column II
(A) Self-reduction (P) Lead
(B) Carbon reduction (Q) Silver
(C) Complex formation and displacement by metal (R) Copper
(D) Decomposition of iodide (S) Boron
A

$$ [\mathrm{A} \rightarrow(\mathbf{P}, \mathbf{R}) ; \mathbf{B} \rightarrow(\mathbf{P}, \mathbf{R}) ; \mathbf{C} \rightarrow(\mathbf{Q}) ; \mathrm{D} \rightarrow(\mathrm{~S})] .$$

B

$$ [\mathrm{A} \rightarrow(\mathbf{P}) ; \mathbf{B} \rightarrow(\mathbf{P}, \mathbf{R}) ; \mathbf{C} \rightarrow(\mathbf{Q}) ; \mathrm{D} \rightarrow(\mathrm{~S})] .$$

C

$$ [\mathrm{A} \rightarrow(\mathbf{P}, \mathbf{R}) ; \mathbf{B} \rightarrow(\mathbf{R}) ; \mathbf{C} \rightarrow(\mathbf{Q}) ; \mathrm{D} \rightarrow(\mathrm{~S})] .$$

D

$$ [\mathrm{A} \rightarrow(\mathbf{P}, \mathbf{R}) ; \mathbf{B} \rightarrow(\mathbf{P}, \mathbf{R}) ; \mathbf{C} \rightarrow(\mathbf{S}) ; \mathrm{D} \rightarrow(\mathrm{Q})] .$$

2
IIT-JEE 2006
MCQ (Single Correct Answer)
+3
-0

$$ \text { Match the Column I with Column II : } $$

Column I Column II
(A) $$
\mathrm{Bi}^{3+} \rightarrow(\mathrm{BiO})^{+}
$$
(P) Heat
(B) $$
\left[\mathrm{AlO}_2\right]^{-} \rightarrow \mathrm{Al}(\mathrm{OH})_3
$$
(Q) Hydrolysis
(C) $$
\mathrm{SiO}_4^{4-} \rightarrow \mathrm{Si}_2 \mathrm{O}_7^{6-}
$$
(R) Acidification
(D) $$
\left(\mathrm{B}_4 \mathrm{O}_7^{2-}\right) \rightarrow\left[\mathrm{B}(\mathrm{OH})_3\right]
$$
(S) Dilution by water
A

$$ [\mathbf{A} \rightarrow(\mathbf{Q}, \mathrm{R}) ; \mathbf{B} \rightarrow(\mathbf{R}) ; \mathbf{C} \rightarrow(\mathbf{P}) ; \mathrm{D} \rightarrow(\mathrm{R})] .$$

B

$$ [\mathbf{A} \rightarrow(\mathbf{Q}, \mathrm{R}) ; \mathbf{B} \rightarrow(\mathbf{R}) ; \mathbf{C} \rightarrow(\mathbf{P}) ; \mathrm{D} \rightarrow(\mathrm{Q}, \mathrm{R})] .$$

C

$$ [\mathbf{A} \rightarrow(\mathbf{Q}) ; \mathbf{B} \rightarrow(\mathbf{R}) ; \mathbf{C} \rightarrow(\mathbf{P}) ; \mathrm{D} \rightarrow(\mathrm{Q})] .$$

D

$$ [\mathbf{A} \rightarrow(\mathbf{Q}) ; \mathbf{B} \rightarrow(\mathbf{R}) ; \mathbf{C} \rightarrow(\mathbf{P}) ; \mathrm{D} \rightarrow(\mathrm{Q}, \mathrm{R})] .$$

3
IIT-JEE 2006
MCQ (Single Correct Answer)
+3
-0

$$ \text { Match Column I with Column II : } $$

Column I Column II
(A) $\mathrm{CH}_3-\mathrm{CHBr}-\mathrm{CD}_3$ on treatment with alc. KOH gives $\mathrm{CH}_2=\mathrm{CH}-\mathrm{CD}_3$ as a major product. (P) E1 reaction
(B) $$
\begin{aligned}
&\mathrm{Ph}-\mathrm{CHBr}-\mathrm{CH}_3\\
&\text { reacts faster than }\\
&\mathrm{Ph}-\mathrm{CHBr}-\mathrm{CD}_3 .
\end{aligned}
$$
(Q) E2 reaction
(C) $$
\mathrm{Ph}-\mathrm{CH}_2-\mathrm{CH}_2 \mathrm{Br}
$$

on treatment with

$$
\mathrm{C}_2 \mathrm{H}_5 \mathrm{OD} / \mathrm{C}_2 \mathrm{H}_5 \mathrm{O}^{-}
$$

gives $\mathrm{Ph}-\mathrm{CD}=\mathrm{CH}_2$
as the major product.
(R) E1 cb reaction
(D) $\mathrm{PhCH}_2, \mathrm{CH}_2 \mathrm{Br}$ and $\mathrm{PhCD}_2 \mathrm{CH}_2 \mathrm{Br}$ react with same rate. (S) First order reaction
A

$$ [\mathrm{A} \rightarrow(\mathrm{Q}) ; \mathrm{B} \rightarrow(\mathrm{Q}) ; \mathrm{C} \rightarrow( \mathrm{~S}) ; \mathrm{D} \rightarrow(\mathrm{P}, \mathrm{~S})] .$$

B

$$ [\mathrm{A} \rightarrow(\mathrm{Q}) ; \mathrm{B} \rightarrow(\mathrm{Q}) ; \mathrm{C} \rightarrow(\mathrm{R}, \mathrm{~S}) ; \mathrm{D} \rightarrow(\mathrm{P})] .$$

C

$$ [\mathrm{A} \rightarrow(\mathrm{Q}) ; \mathrm{B} \rightarrow(\mathrm{Q}) ; \mathrm{C} \rightarrow(\mathrm{R}, \mathrm{~S}) ; \mathrm{D} \rightarrow(\mathrm{P}, \mathrm{~S})] .$$

D

$$ [\mathrm{A} \rightarrow(\mathrm{Q}, P) ; \mathrm{B} \rightarrow(\mathrm{Q}) ; \mathrm{C} \rightarrow(\mathrm{R}, \mathrm{~S}) ; \mathrm{D} \rightarrow(\mathrm{P}, \mathrm{~S})] .$$

4
IIT-JEE 2006
MCQ (More than One Correct Answer)
+5
-1.25
The equations of the common tangents to the parabola $$y = {x^2}$$ and $$y = - {\left( {x - 2} \right)^2}$$ is/are
A
$$y = 4\left( {x - 1} \right)$$
B
$$y=0$$
C
$$y = - 4\left( {x - 1} \right)$$
D
$$y = - 30x - 50$$

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