What is maltose composed of?

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

$A$ polysaccharide '$X$' on boiling with dil $H_2SO_4$ at $393 \ K$ under $2-3 \ atm$ pressure yields '$Y$'. '$Y$' on treatment with bromine water gives gluconic acid. '$X$' contains $\beta-$glycosidic linkages only. Compound '$X$' is ..... .

Give the classification of monosaccharides.

Reducing saccharides among the following are:

Sucrose	Ribose	Maltose	Lactose	Cellulose
$1$	$2$	$3$	$4$	$5$

The indigestible carbohydrate,which is also a constituent of our diet,is