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(C) The iodine test is used to detect the presence of polysaccharides.$1$. Starch forms a helical structure that traps $I_2$ molecules,resulting in a

Vedclass · Accepted Answer

$(P-I), (Q-II), (R-III)$

Vedclass · Answer

(C) The iodine test is used to detect the presence of polysaccharides.$1$. Starch forms a helical structure that traps $I_2$ molecules,resulting in a deep blue color $(P-I)$.$2$. Glycogen has a highly branched structure that reacts with $I_2$ to produce a reddish-brown or red color $(Q-II)$.$3$. Cellulose does not form the necessary helical structure to trap $I_2$ molecules,so it does not give a color with iodine $(R-III)$.Therefore,the correct matching is $(P-I), (Q-II), (R-III)$.

Column-$I$	Column-$II$
$P$. Starch $+ I_2$	$I$. Blue color
$Q$. Glycogen $+ I_2$	$II$. Red color
$R$. Cellulose $+ I_2$	$III$. No color

Match the following columns:

Column-$I$ Column-$II$

$P$. Starch $+ I_2$ $I$. Blue color

$Q$. Glycogen $+ I_2$ $II$. Red color

$R$. Cellulose $+ I_2$ $III$. No color

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Match the following columns: Column-$I$ Column-$II$ $P$. Starch $+ I_2$ $I$. Blue color $Q$. Glycogen $+ I_2$ $II$. Red color $R$. Cellulose $+ I_2$ $III$. No color