Biomolecules

L- isomer of a compound ‘A’ (C₄H₈O₄) gives a positive test with ${\left[Ag{\left(N{H}_3\right)}_2\right]}^{+}$ <!-- [if gte mso 9]><xml> </xml><![endif]-->. Treatment of ‘A’ with acetic anhydride yields triacetate derivative. Compound ‘A’ produces an optically active compound (B) and an optically inactive compound (C) on treatment with bromine water and HNO₃ respectively. Compound (A) is:

Which of the following will react with ${\mathrm{C}\mathrm{H}\mathrm{C}\mathrm{l}}_3+$ alc. $\mathrm{K}\mathrm{O}\mathrm{H}$ ?

What are the functional groups present in the structure of maltose?

$\begin{array}{rr}& {\mathrm{E}}_{{\mathrm{C}\mathrm{u}}^{2+}{\mathrm{C}\mathrm{u}}^{\circ }}^{\circ }=+0.34\mathrm{V}\\ & {\mathrm{E}}_{{\mathrm{Z}\mathrm{n}}^{2+}\mid \mathrm{Z}\mathrm{n}}^{\circ }=-0.76\mathrm{V}\end{array}$

The number of chiral centres present in threonine is(Biomolecules)

The letters ‘D’ or ‘L’ before the name of a stereoisomer of a compound indicate the correlation of configuration of that particular stereoisomer. This refers to their relation with one of the isomers of glyceraldehyde. Predict whether the following compound has ‘D’ or ‘L’ configuration.

Monosaccharides contain carbonyl group hence are classified, as aldose or ketose. The number of carbon atoms present in the monosaccharide molecule are also considered for classification. In which class of monosaccharide will you place fructose?

Under what conditions glucose is converted to gluconic and saccharic acid?

Name the linkage connecting monosaccharide units in polysaccharides

In nucleoside a base is attached at 1′ position of sugar moiety. Nucleotide is formed by linking of phosphoric acid unit to the sugar unit of nucleoside. At which position of sugar unit is the phosphoric acid linked in a nucleoside to give a nucleotide?

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