Match the following. Codes array llll A & B & C & D array

(A) Tollen's reagent is a solution of silver nitrate, ammonia and some sodium hydroxide. It is commonly known as ammoniacal silver nitrate. (B) Schiff's reagent is a magenta coloured dye which is called para-rosaniline hydrochloride solution with sulphurous acid. (C) Rosenmund catalyst is used to reduce acyl chloride to aldehydes. It is composed of palladium on $\mathrm{BaSO}_4$. (D) Fehling's solution $B$ is aqueous solution of potassium sodium tartrate in a base like $\mathrm{NaOH}$, potassium sodium tartrate is also known as Rochelle salt. So, the correct match is A-III, B-I, C-IV, D-II.