Which of the following compounds would react faster with NaCN in an S_N² reaction?

1. 

2. 

3. 

4. 

Phenylmagnesium bromide reacts with methanol to give

1. A mixture of toluene and Mg(OH)Br

2. A mixture of phenol and Mg(Me)Br

3. A mixture of anisole and Mg(OH)Br

4. A mixture of benzene and Mg(OMe)Br

Ethyl chloride is converted into diethyl ether by -

$\underset{\left(Predominant\right)}{\left(\mathrm{B}\right)}\stackrel{PB{r}_{\mathit{3}}}{\leftarrow }$$\stackrel{\mathrm{HBr}}{\to }\underset{\left(Predominant\right)}{\left(A\right)}$

(A) and (B) are respectively :

$\stackrel{\mathrm{Lucas} \mathrm{Reagent}}{\to }A\left(\mathrm{Major}\right)$

The compound ‘A’ is

$\underset{\mathrm{heat}}{\overset{{\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}\underset{major}{P}\stackrel{NBS}{\to }\underset{major}{Q}$

The structure of Q is?

R–CH₂–CH₂–OH can be converted into
R–CH₂–CH₂–COOH. The correct sequence of
reagents is

1. PBr₃, KCN, H₃O⁺

2. PBr₃, KCN, H₂

3. KCN, H₃O⁺

4. HCN, PBr₃, H₃O⁺

$\stackrel{{\mathrm{H}}^{+}/∆}{\to }A\left(major\right)$

The product ‘A’ is

Identify (X) in the sequence :

$\underset{\left(\mathrm{X}\right)}{{\mathrm{C}}_3{\mathrm{H}}_8\mathrm{O}}\underset{H_{2}S{O}_4}{\overset{K_{2}C{r}_2{O}_7}{\to }}{C}_3{H}_{6}O\underset{warm}{\overset{I_2+NaOH}{\to }}CH{I}_3$

1. ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2\mathrm{OH}$

2. ${\mathrm{CH}}_3-\underset{\mathrm{OH}}{\underset{|}{\mathrm{CH}}}-{\mathrm{CH}}_3$

3. ${\mathrm{CH}}_3-\mathrm{O}-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

4. ${\mathrm{CH}}_3-{\mathrm{CH}}_2-\mathrm{CHO}$

1-propanol and 2-propanol can be best distinguished
by:

1. Oxidation with alkaline KMnO₄ followed by
reaction with Fehling solution.

2. Oxidation with acidic dichromate followed by
reaction with Fehling solution

3. Oxidation by heating with copper followed by
reaction with Fehling solution.

4. Oxidation with conc. H₂SO₄
followed by reaction with Fehling solution