A few reactions are given below:

i.	\(\small{\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br}+\mathrm{KOH} \rightarrow \mathrm{CH}_3 \mathrm{CH}=\mathrm{CH}_2+\mathrm{KBr}+\mathrm{H}_2 \mathrm{O}}\)
ii.
iii.

Select the reaction type for the above reactions:

	(i)	(ii)	(iii)
1.	Elimination	Substitution	Addition
2.	Elimination	Substitution	Substitution
3.	Substitution	Addition	Addition
4.	Elimination	Elimination	Addition

Which of the following biphenyls is optically active?

1.
2.
3.
4.

When hydrolyzed with aqueous KOH, compounds that undergoes racemization are:

(i)		(ii)	CH3CH2CH2Cl
(iii)		(iv)

The end product (C) in the below-mentioned reaction is:
\(H_3C-Br\xrightarrow{\bf KCN }A\xrightarrow{ \bf H_3O^+~~}B\xrightarrow[\bf\text{Ether}]{~~LiAlH_4~~}C\)

The correct order of increasing C-X bond reactivity toward nucleophiles among the following is:

I		II
III	\(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{X}\)	IV	\(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{X}\)

Which of the following reactions cannot form new carbon-carbon bonds?

1. Reimer-Tiemann reaction

2. Cannizaro reaction

3. Wurtz reaction

4. Friedel-Crafts acylation

Among the following, which hydrolysis reaction occurs at the slowest rate:

1.
2.
3.
4.

In S_N2 substitution reaction of the type

$R - \mathrm{Br} + {\mathrm{Cl}}^{-} \stackrel{\mathrm{DMF}}{\to }R - \mathrm{Cl} + {\mathrm{Br}}^{-},$

Which one of the following has the highest relative rate ?

(1) ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2\mathrm{Br}$

(2) ${\mathrm{CH}}_3-\underset{\underset{{\mathrm{CH}}_3}{|}}{\mathrm{C}}\mathrm{H}-{\mathrm{CH}}_2\mathrm{Br}$

(3) ${\mathrm{CH}}_3-\underset{\underset{{\mathrm{CH}}_3}{|}}{\overset{\underset{|}{{\mathrm{CH}}_3}}{\mathrm{C}}}-{\mathrm{CH}}_2\mathrm{Br}$

(4) ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Br}$

Propionic acid with Br₂ /red P yields a dibromo product. Its structure would be

Which one is the most reactive toward S_N1 reaction?

1. C₆H₅CH(C₆H₅)Br

2. C₆H₅CH(CH₃)Br

3. C₆H₅C(CH₃)(C₆H₅)Br

4. C₆H₅CH₂Br