Consider the following

Statement-I : Cane sugar is a disaccharide of $\alpha$-D-glucose and $\beta$-D-fructose.

Statement-II : Milk sugar is a disaccharide of $\alpha$-D-glucose and $\beta$-D-galactose.

The correct answer is

The deficiency of vitamin $(X)$ causes convulsions. Source of $X$ is $Y$. What are $X$ and $Y$ ?

Which of the following is not an example of synthetic detergent?

The most reactive compound towards nucleophilic substitution with an aqueous NaOH is