Which of the following alcohol will show positive iodoform test ?

(1)

(2)

(3)

(4) None of these

The compound A gives following reactions.

Its structure can be

(1)
(2)
(3)
(4)

In compound A (C₃₀H₆₀O) following tests are observed negatively, A can be :

(1) an unsaturated ether

(2) an epoxide

(3) a cyclic ketone

(4) a cycloalkanol

A mixture of two organic compound gives red coloured precipitate with cuprous chloride (ammonical) and silver mirror on heating with Zn dust and NH₄CI followed by AgNO₃ + NH₄OH solution. The mixture contains

1.
2.
3.
4.

 ?

The major product of the reaction is:-

1.  

2.  

3.  

4.  

Which one of the following is the intermediate in the preparation of a ketone by hydration of an alkyne in the presence of sulfuric acid and mercury (II) sulphate?

1. 

2. 

3. 

4. 

 $\stackrel{{\mathrm{RCO}}_2\mathrm{H}}{\to }$ product; Product of this reaction is:

(a) 

(b) 

(c) both (a) and (b)

(d) none of these

Above conversion can be achieved by:

(a) Wolf-kishner reduction

(b) Clemmensen reduction

(c) LiAlH₄

(d) NaBH₄

Product (A) is:

1. 

2. 

3.  

4.   

Reagent to carry out above conversion,P,Q,R respectively are:

(1) H₂C=CH-CH₂-Br,(HO^{$\mathrm{\theta }$}),[HO^{$\mathrm{\theta }$},$∆$], Wacker-process

(2) H₂C=CH-CH₂-Br(HO^{$\mathrm{\theta }$}), Wacker-process, HO^{$\mathrm{\theta }$},$∆$

(3) Wacker process, H₂C=CH-CH₂-Br(HO^{$\mathrm{\theta }$}),HO^{$\mathrm{\theta }$}($∆$)

(4) Wacker process,HO^{$\mathrm{\theta }$}($∆$), H₂C=CH-CH₂-Br(HO^{$\mathrm{\theta }$})