The reaction

is fastest when X is

1. Cl

2. NH₂

3. OC₂H₅

4. OCOR

In a set of reaction propionic acid yielded a compound D.

CH3CH2COOH$\stackrel{{\mathrm{SOCl}}_2}{\to }$ B$\underset{∆}{\overset{N{H}_3}{\to }}$ C$\underset{{\mathrm{Br}}_2}{\overset{\mathrm{KOH}}{\to }}$
$$

The structure of D would be

1. CH₃CH₂NHCH₃

2. CH₃CH₂NH₂

3. CH₃CH₂CH₂NH₂

4. CH₃CH₂CONH₂

Hex-3-ene$\underset{2.<mspace\; width="1em"></mspace>\mathrm{Zn},<mspace\; width="1em"></mspace>{\mathrm{H}}_2\mathrm{O}}{\overset{1.<mspace\; width="1em"></mspace>{\mathrm{O}}_3}{\to }}$ A $\underset{{\mathrm{H}}^{+}}{\overset{{\mathrm{KMnO}}_4}{\to }}$ B $\underset{\mathrm{Red}<mspace\; width="1em"></mspace>\mathrm{P}}{\overset{{\mathrm{Br}}_2}{\to }}$ C$\stackrel{\mathrm{KOH}<mspace\; width="1em"></mspace>\left(\mathrm{aq}\right)}{\to }$D

D is :-

1. ${\mathrm{CH}}_3-\underset{\mathrm{Br}}{\underset{|}{\mathrm{CH}}}-\mathrm{COOH}$                           

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

3. ${\mathrm{CH}}_3-\underset{\mathrm{Br}}{\underset{|}{\mathrm{CH}}}-\mathrm{CHO}$                         

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

$<mspace\; width="1em"></mspace>\stackrel{\mathrm{cold}<mspace\; width="1em"></mspace>{\mathrm{KMnO}}_4}{\to }$P $\underset{\mathrm{AcOH}}{\overset{{\mathrm{CrO}}_3}{\to }}$Q$\stackrel{{\mathrm{NH}}_2{\mathrm{NH}}_2/{\mathrm{OH}}^{-}}{\to }$ R compound R and R :-

(1) Identical (Homomer)

(2) Not isomer

(3) Positional isomer

(4) Function group isomer

$\stackrel{\mathrm{Zn}-\mathrm{Hg}/\mathrm{HCl}}{\to }$Product, Product is

1.    2.

3.    4.

For the given reactions,
 


The formula for z would be:

1. CH$\equiv$CH

2. CHI₃

3. Ph-COONa

4. CH₂=CH₂

The given two compounds can be distinguished by: 

and

a. I₂+NaOH

b. NaSO₃H

c. NaCN/HCl

d. 2,4-DNP

1. a, b, d

2. a, b

3. a, c, d

4. a, d

Fehling solution gives red precipitated with

(a) Aromatic aldehyde

(b) Aliphatic aldehyde

(c) Ketone

(d) terminal $\mathrm{\alpha }$-Hydroxy ketone

_{1. b,d}

_{2. a,b}

_{3. a,d}

_{4. b,c}

Which of the following  gives aldol condensation

(1)

(2)

(3)

(4)