Among the following reactions, the reaction will not form acetaldehyde is:

1. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\underset{573\mathrm{K}}{\overset{Cu}{\to }}$

2. $C{H}_{3}CN\underset{\left(ii\right) H_{2}O}{\overset{\left(i\right) DIBAL H}{\to }}$

3. ${\mathrm{CH}}_2={\mathrm{CH}}_2+{\mathrm{O}}_2 \underset{{\mathrm{H}}_2\mathrm{O}}{\overset{\mathrm{Pd}\left(\mathrm{II}\right)/\mathrm{Cu}\left(\mathrm{II}\right)}{\to }}$

4. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\stackrel{{\mathrm{CrO}}_3-{\mathrm{H}}_2{\mathrm{SO}}_4}{\to }$

The compound that contains –COOH group among the following is-

1.  Sulphanilic acid

2.  Picric acid

3.  Aspirin

4.  Ascorbic acid

Identify the major products (A) and (B) respectively in the following reactions of phenol:

	[A]	[B]
1.
2.
3.
4.

Identify A in the given reaction:

1.		2.
3.		4.

The major product (P) of the following reaction is:

1.		2.
3.		4.

An organic compound 'A' (C₉H₁₀O) when treated with conc. HI undergoes cleavage to yield compounds 'B' and 'C'. 'B' gives a yellow precipitate with AgNO₃ whereas 'C' tautomerizes to 'D'. 'D' gives a positive iodoform test. 'A' could be:

1.
2.
3.
4.

Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H₂SO₄ followed by treatment with NaOH?

1. 

2. 

3. 

4. 

When neopentyl alcohol is heated with an acid, it slowly converted into an 85 : 15 mixture of alkenes A and B, respectively. What are these alkenes ?

1.
2.
3.
4.	and

The major product [B] in the following reaction is: 

  

1.		2.
3.		4.