Identify $A$ in the following reaction:
$C_6H_{12}O_6 \xrightarrow{\text{dil. } HNO_3} A$

Match List-$I$ with List-$II$:

List-$I$	List-$II$
$A$. $\alpha$-Glucose and $\alpha$-Galactose	$I$. Functional isomers
$B$. $\alpha$-Glucose and $\beta$-Glucose	$II$. Homologous
$C$. $\alpha$-Glucose and $\alpha$-Fructose	$III$. Anomers
$D$. $\alpha$-Glucose and $\alpha$-Ribose	$IV$. Epimers

Choose the correct answer from the options given below:

When glucose is oxidized with nitric acid,the compound formed is:

Glucose gives a silver mirror test with Tollen's reagent. This indicates the presence of which group?

When the following aldohexose exists in its $D$-configuration,the total number of stereoisomers in its pyranose form is :
$CHO-CH_2-CH(OH)-CH(OH)-CH(OH)-CH_2OH$

Which of the following is a non-reducing disaccharide sugar?