Represent the chemical reaction of osazone formation from D-glucose.

Define optical activity. How many optical isomers are possible for glucose.

Write the chemical reaction to elucidate-

• Glucose contains five -OH groups.

Give definition of monosaccharide and disaccharide and give one example for each. Give one reaction for each group to detect the presence of $-\mathrm{CHO}$ and $>\mathrm{C}=\mathrm{O}$ groups. Differentiate between glucose and fructose.

Write the chemical reaction to elucidate-

• Glucose contains six carbon atoms in a straight chain.

The following carbohydrate is