How many of the following will produce gluconic acid or it's salt when treated with $\mathrm{D}-$ Glucose
(a) Tollen's reagent
(b) ${\mathrm{HNO}}_3$
(c) ${\mathrm{Br}}_2/$ water
(d) ${\mathrm{HIO}}_4$
(e) Fehling's solution
(f) Red $\mathrm{P}/\mathrm{HI}/\Delta$
(g) Benedict's solution
(h) ${\mathrm{PhNHNH}}_2$
(i) $\mathrm{HCN}$

Number of stereo centers present in linear and cyclic structures of glucose are respectively:

Consider the following reactions :

(i) Glucose $+\mathrm{ROH}\stackrel{\mathrm{dry}\mathrm{HCI}}{\to }\mathrm{Acetal}\underset{{\left({\mathrm{CH}}_3\mathrm{CO}\right)}_2}{\overset{\mathrm{x}\mathrm{eq}.\mathrm{of}}{\to }}$ acetyl derivative

(ii) Glucose $\stackrel{\mathrm{Ni}/{\mathrm{H}}_2}{\to }\mathrm{A}\underset{{\left({\mathrm{CH}}_3\mathrm{CO}\right)}_2\mathrm{O}}{\overset{\mathrm{y}\mathrm{eq}.\mathrm{of}}{\to }}$ acetyl derivative

(iii) Glucose $\underset{{\left({\mathrm{CH}}_3\mathrm{CO}\right)}_2\mathrm{O}}{\overset{\mathrm{z}\mathrm{eq}.\mathrm{of}}{\to }}$ acetyl derivative '$\mathrm{x}$' , '$\mathrm{y}$' and '$\mathrm{z}$' in these reactions are respectively.

Identify the product $\mathrm{Y}$ in following reaction $\mathrm{Maltose}\stackrel{ \mathrm{Hydrolysis} }{⟶}\mathrm{X}\underset{\left(\mathrm{excess}\right)}{\overset{\mathrm{dil}.{\mathrm{HNO}}_3}{\to }}\mathrm{Y}$

In the above reactions, the enzyme $\mathrm{A}$ and enzyme B respectively are :-