Embibe Experts Solutions for Chapter: Biomolecules, Exercise 1: JEE Advanced Paper 2 - 2016

The Fischer presentation of D-glucose is given below



The correct structure(s) of $\mathrm{\beta }-\mathrm{L}-$ glucopyranose is(are)

For 'invert sugar', the correct statement(s) is (are)

(Given: specific rotations of $\left(+\right)-$sucrose, $\left(+\right)-$maltose, $\mathrm{L}-\left(-\right)-$glucose and $\mathrm{L}-\left(+\right)-$fructose in aqueous solution are $+\mathrm{ }{66}^{°},\mathrm{ }+{140}^{°},\mathrm{ }–{52}^{°}$ and $+\mathrm{ }{92}^{°}$, respectively)

Given:

The compound $\left(\mathrm{s}\right),$ which on reaction with ${\mathrm{HNO}}_3$ will give the product having degree of rotation, $\left[\mathrm{\alpha }\right]\mathrm{D}=-52.7°$ is (are)

Which of the following statement(s) is(are) true?

The structure of $\mathrm{D}-\left(+\right)-\mathrm{g}\mathrm{l}\mathrm{u}\mathrm{c}\mathrm{o}\mathrm{s}\mathrm{e}$ is




The structure of $\mathrm{L}-\left(-\right)-\mathrm{g}\mathrm{l}\mathrm{u}\mathrm{c}\mathrm{o}\mathrm{s}\mathrm{e}$ is