Q. The correct statement about the following disaccharide is:

1. ring (a) is furanonse with $\alpha$ - glycosidic link
2. ring (b) is furanonse with $\alpha$ - glycosidic link
3. ring (a) is pyranonse with $\alpha$ - glycosidic link
4. ring (b) is pyranonse with $\beta$ - glycosidic link

Q. The synthesis of $3-octyne$ is achieved by adding a bromoalkane into a mixture of sodium amide and an alkyne. The bromoalkane and alkyne respectively are:

1. $BrC{H}_{2}C{H}_{2}C{H}_{2}C{H}_3$ and $C{H}_{3}C{H}_{2}C\equiv CH$
2. $BrC{H}_{2}C{H}_{2}C{H}_3$ and $C{H}_{3}C{H}_{2}C{H}_{2}C\equiv CH$
3. $BrC{H}_{2}C{H}_{2}C{H}_{2}C{H}_{2}C{H}_3$ and $C{H}_{3}C\equiv CH$
4. $BrC{H}_{2}C{H}_{2}C{H}_{2}C{H}_3$ and $C{H}_{3}C{H}_{2}C\equiv CH$