How many sp² carbon atoms are present in the product formed from the given reaction?

Identify A in the given chemical reaction:

1.		2.
3.		4.

The product A in the following reaction is:              

1.		2.
3.		4.

Consider the following reaction, 

The major product in the above reaction is:

1.		2.
3.		4.

The major product among the following reaction is:

1.		2.
3.		4.

The correct reagent that is used for the following reaction is: 

${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_3\stackrel{?}{⟶}{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CHO}$

1. Manganese acetate

2. Copper at high temperature and pressure

3. Molybdenum oxide

4. Potassium permanganate

Among the following, the compound that produces an optically inactive compound on hydrogenation is:

1.		2.
3.		4.

Identify products A and B in the given reaction: 

1.
2.
3.
4.

The major product [R] in the following sequence of reactions is :

1. 

2. 

3.

4.