Which of the following would produce secondary alcohol?

Product P in the above reaction is -

Amongst the following carboxylic acids the strongest acid is:

Ethanal reacts with HCN and the addition product so obtained is hydrolyzed to form a new compound. The compound shows

Ethyl acetate on reaction with excess of methyl magnesium chloride and dil. H₂SO₄ gives

A mixture of benzaldehyde and formaldehyde on heating with aqueous (conc.)NaOH       solution gives

For the reaction:

Which reagent will be appropriate for the above conversion?

Identify X

Phenolphthalein is produced on heating phthalic anhydride and conc. sulphuric acid with

The compound Y in the above sequence of reactions is- 

In the following reaction:

The structure of the major product 'X' is

The compound  can be exclusively oxidized into

by

X $\underset{∆}{\overset{{\mathrm{KMnO}}_4}{\leftarrow }}$$\stackrel{∆}{\to }$Y

In the above reaction, X and Y are:

Reactant (A) in this reaction is : 

$\underset{\left(\mathrm{ii}\right){\mathrm{H}}^{+}/{\mathrm{H}}_2\mathrm{O}}{\overset{\left(\mathrm{i}\right)\mathrm{NaOH}/100°\mathrm{c}}{\to }}$

Major Product is:

Which compound is most reactive towards nucleophilic addition?

The reaction

is fastest when X is

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

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

D is :-

$\underset{\mathrm{ii}·∆}{\overset{\mathrm{i}·{\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7}{\to }}$X; X is

$\stackrel{\mathrm{cold} {\mathrm{KMnO}}_4}{\to }$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 :-

+ $\underset{(1 \mathrm{eq})}{\overset{\mathrm{H}+}{\to }}$ A$\underset{\mathrm{ii}· {\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{\mathrm{i}. {\mathrm{LiAlH}}_4}{\to }}$ B, B is

(1)

(2)

(3)

(4)

$\stackrel{\mathrm{PCC}}{\to }$$A \underset{{\mathrm{H}}^{+}}{\overset{{\mathrm{CH}}_3{\mathrm{NH}}_2}{\to }} B$$\stackrel{{\mathrm{H}}_2/\mathrm{Pd}-\mathrm{C}}{\to }$Product

Product is

1.

2.

3.

4.

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

$\stackrel{{\mathrm{I}}_2+\mathrm{NaOH} }{\to }$x + y(yellow ppt) y$\underset{∆}{\overset{\mathrm{Ag}}{\to }}$  z;z is

$\underset{\mathrm{Zn}/{\mathrm{H}}_2\mathrm{O}}{\overset{{\mathrm{O}}_3\left(\mathrm{I} \mathrm{mole}\right)}{\to }}$ P$\underset{∆}{\overset{\mathrm{NaOH}}{\to }}$  Q; Q is

The presence of unsaturation in organic compounds can be tested with :

and can be distinguished by

1. I₂+NaOH

2. NaSO₃H

3. NaCN/HCl

4. 2,4-DNP

Fehling solution gives red precipitated with

(a) Aromatic aldehyde

(b) Aliphatic aldehyde

(c) Ketone

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