JEE MAIN - Chemistry (2022 - 24th June Morning Shift - No. 11)
A polysaccharide 'X' on boiling with dil H2SO4 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 :
starch
cellulose
amylose
amylopectin
Explanation
Cellulose contains $\beta$-glycosidic linkages only. Structure of cellulose
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On boiling with dil. $\mathrm{H}_{2} \mathrm{SO}_{4}$ at $393 \mathrm{~K}$ under 2-3 atm, ' $X$ ' forms glucose, which given gluconic acid on treatment with bromine water.
On boiling with dil. $\mathrm{H}_{2} \mathrm{SO}_{4}$ at $393 \mathrm{~K}$ under 2-3 atm, ' $X$ ' forms glucose, which given gluconic acid on treatment with bromine water.
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