Identify A and B in the chemical reaction:

1.
2.
3.
4.

What is the final product (major) 'A' in the given reaction?
 

1.		2.
3.		4.

Which of the following compounds will show retention in the configuration on nucleophilic substitution by OH^– ion ?

1. ${\mathrm{CH}}_3 -\mathrm{CH}\left({\mathrm{C}}_2{\mathrm{H}}_5\right)-{\mathrm{CH}}_2\mathrm{Br}$

2. ${\mathrm{CH}}_3 -\mathrm{CH}\left({\mathrm{C}}_6{\mathrm{H}}_5\right) -\mathrm{Br}$

3. ${\mathrm{CH}}_3 -\mathrm{CH}\left({\mathrm{CH}}_3\right) -\mathrm{Br}$

4. ${\mathrm{CH}}_3-\mathrm{CH}\left(\mathrm{Br}\right)-{\mathrm{C}}_6{\mathrm{H}}_{13}$

The number of chiral carbons present in the molecule given below is:

1. 8
2. 7
3. 5
4. 6

Consider the reaction sequence given below :

The correct statement among the following is:

The compound form precipitate with aq. AgNO₃ solution most readily among the following is-

1. 

2. 

3. 

4. 

The major product formed in the following reaction is :-

$C{H}_{3}CH = CHCH{\left(C{H}_3\right)}_2 \stackrel{HBr}{\to }$

1. CH₃CH₂CH₂C(Br)(CH₃)₂

2. Br(CH₂)₃CH(CH₃)₂

3. CH₃CH₂CH(Br)CH(CH₃)₂

4.  CH₃CH(Br)CH₂CH(CH₃)₂