In the following reaction,

\(\mathrm{ CH_{3}C\equiv CH\xrightarrow[Red \ hot \ iron \ tube]{873 K} \ A}\)

The number of ($\sigma$) bonds present in the product (A) is:

1.	21	2.	9
3.	24	4.	18

Which of the following statements is true for the reaction given below?

1.  P is a meso compound 2,3-butanedi 01 formed by syn addition

2.  P is a meso compound formed by anti addition

3.  P is a racemic mixture of d- and l- 2,3" butanediol formed by anti addition

4.  P is a racemic mixture of d- and l- 2,3- butanediol formed by Syn addition

1,2-dibromopropane on treatment with X moles of ${\mathrm{NaNH}}_2$ followed by treatment with ethyl bromine gave a pent-2-yne. The value of X is -

1.  1

2.  2

3.  3

4.  4

Consider the following reaction:
  
What is the major product A?

1.		2.
3.		4.

The alkane that gives only one monochloro product on chlorination with \(\text{Cl}_2\) in presence of diffused sunlight is-

The product P obtained through the following sequence of reaction is:

1. 3-Chloroaniline

2. 4-Bromochlorobenzene

3. 3-Bromochlorobenene

4. 3-Bromobenzene

Compound 'X' in the following reaction is:

1.		2.
3.		4.

In the following reaction

$\underset{{\mathrm{OH}}^{-}/∆}{\overset{\mathrm{ozonolysis}}{\to }}$X

The major product X is:

1.            2.  

3.          4.  

The major product in the above-mentioned reaction is:

1.
2.
3.
4.

 
Compound A is:

1.		2.
3.		4.