A polysaccharide 'X' on boiling with dil H_2S | vedclass

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Question

(B) $1$. The polysaccharide '$X$' on hydrolysis yields '$Y$'.$2$. Since '$Y$' gives gluconic acid on treatment with bromine water,'$Y$' must be glucos

Vedclass · Accepted Answer

cellulose

Vedclass · Answer

(B) $1$. The polysaccharide '$X$' on hydrolysis yields '$Y$'.$2$. Since '$Y$' gives gluconic acid on treatment with bromine water,'$Y$' must be glucose.$3$. Cellulose is a polysaccharide composed of $D$-glucose units linked by $\beta-1,4-$glycosidic linkages.$4$. Starch (amylose and amylopectin) contains $\alpha-$glycosidic linkages.$5$. Therefore,'$X$' is cellulose.

$A$ 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 ..... .

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