Question

When D-glucose reacts with HI, it forms ______.

विकल्प

• Gluconic acid

• n-hexane

• Saccharic acid

• Iodohexane

Answer 1

When D-glucose reacts with HI, it forms n-hexane.

Explanation:

On prolonged heating with HI, it forms n-hexane, suggesting that all the six carbon atoms are linked in a straight chain.

\[\begin{array}{cc}
\ce{CHO}\phantom{.................................................}\\
|\phantom{.....................................................}\\
\ce{(CHOH)4 ->[HI,\Delta] \underset{{(n-Hexane)}}{CH3 - CH2 - CH2 - CH2 - CH2 - CH3}}\\
|\phantom{.....................................................}\\
\ce{CH2OH}\phantom{...............................................}
\end{array}\]