Glucose and mannose are.......

Sucrose molecule is made up of

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

Which set of terms correctly identifies the carbohydrate shown?
$1$. Pentose $2$. Pentulose $3$. Hexulose $4$. Hexose
$5$. Aldose $6$. Ketose $7$. Pyranose $8$. Furanose

Assertion : Hydrolysis of sucrose is known as inversion of cane sugar.
Reason : Sucrose is a disaccharide.

The 'epimerisation' involves