Compound`(D )`is:

The compounds (D) is:

Match each of the following four structures with one of the compound A-D on the basis of the following experimental facts Compound (A),(B) and ( C ) are optically active, but compound (D) is not Compound (C ) gives the same products as compound (D) on treatment with periodic acid, But compound (B) gives a different product. Compound (A) does not react with periodic acid. Compound A-D are respectively?

When an oxide of manganese (A) is fused with KOH in the presence of an oxidising agent and dissolved in water, it gives a dark green solution of compound (B). Compound (B) disproportionates in neutral or acidic (C ) oxidises potassium iodide solution to a compound (D) and compound (A) is also formed. Identify compounds A to D and also explain the reactions involved.

Compound (C ) and (D) are:

Compound (C ) and (D) are:

Compound (C ) and(D) are: