$\alpha-D-(+)$-glucose and $\beta-D-(+)$-glucose are .......

Glucose and gluconic acid on oxidation with dilute nitric acid $(HNO_3)$ form saccharic acid. This reaction confirms that glucose contains:

How does glucose differ from fructose?

Which is the chemical test for polysaccharide?

Give the classification of monosaccharides.

How do you explain the presence of all the six carbon atoms in glucose in a straight chain?