Identify A and B in the chemical reaction:

1.
2.
3.
4.

Consider the reaction sequence given below :

The correct statement among the following is:

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

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

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

1.		2.
3.		4.

The major product formed in the following reaction is :-

$C{H}_{3}CH<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>CHCH{\left(C{H}_3\right)}_2<mspace\; width="1em"></mspace>\stackrel{HBr}{\to }$

1. CH₃CH₂CH₂C(Br)(CH₃)₂

2. Br(CH₂)₃CH(CH₃)₂

3. CH₃CH₂CH(Br)CH(CH₃)₂

4.  CH₃CH(Br)CH₂CH(CH₃)₂

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

1. 

2. 

3. 

4. 

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

1. ${\mathrm{CH}}_3<mspace\; width="1em"></mspace>-\mathrm{CH}\left({\mathrm{C}}_2{\mathrm{H}}_5\right)-{\mathrm{CH}}_2\mathrm{Br}$

2. ${\mathrm{CH}}_3<mspace\; width="1em"></mspace>-\mathrm{CH}\left({\mathrm{C}}_6{\mathrm{H}}_5\right)<mspace\; width="1em"></mspace>-\mathrm{Br}$

3. ${\mathrm{CH}}_3<mspace\; width="1em"></mspace>-\mathrm{CH}\left({\mathrm{CH}}_3\right)<mspace\; width="1em"></mspace>-\mathrm{Br}$

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