Question

Match the compounds/ions in Column I with their properties/reactions in Column II. Indicate your answer by darkening the appropriate bubbles of the 4x4 matrix given in the ORS.

Answer 1

(A) Benzaldehyde $C_6{H}_{5}CHO$ gives precipitate with 2, 4-dinitrophenylhydrazine.
It forms a hydrazone derivative. Benzaldehyde gives precipitate with $AgN{O}_3$. Benzaldehyde is involved in cyanohydrin formation. These are characteristic of aldehyde group $-CHO$ group.

(B) Propyne $C{H}_{3}C\equiv CH$ gives precipitate with $AgN{O}_3$.

(C) Cyanide ion $C{N}^{-}$ gives precipitate with $AgN{O}_3$. It is a nucleophie. It is involved in cyanohydrin formation.

(D) Iodide ion $I^{-}$ gives precipitate with $AgN{O}_3$. It is a nucleophie.