Match the items of column I with items of column II.

1. a= iii; b = iv; c= ii; d = i

2. a = i; b = iii; c = ii; d = iv

3. a = ii; b = i; c = iv; d = iii

4. a = iv; b = i; c = ii; d = iii

Which of the following would exhibit cis-trans isomerism?

1. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}={\mathrm{CH}}_2$

2. $\mathrm{ClCH}=\mathrm{CHCl}$

3. $\mathrm{ClCH}={\mathrm{CCl}}_2$

4. ${\mathrm{CH}}_2=\mathrm{CH}-\mathrm{COOH}$

The number of hydrogen atoms attached to primary (1°), secondary (2°), and tertiary (3°) carbons in the given organic compound are:

Geometrical isomerism is not shown by: 

1. 1,1-Dichloro-1-pentene 

2. 1,2-Dichloro-1-pentene 

3. 1,3-Dichloro-2-pentene 

4. 1,4-Dichloro-2-pentene 

Match the items of Column I with items of Column II.