$\alpha - D - (+)$ glucose and $\beta - D - (+)$ glucose are

Which carbon atom of glucose,numbered from $C-1$ to $C-6$,converts its functional group to a $-COOH$ group when heated with $Br_2$ water?

$CHO-(CHOH)_4-CH_2OH \xrightarrow{Br_2/H_2O} P$; $P$ is:

The structure of $D-(+)$-glucose is given. What is the structure of $L-(-)$-glucose?

Starch is formed by the linkage of which carbons of glucose units?

On hydrolysis,sucrose gives: