Match the entries of column I with appropriate entries of column II and choose the correct option out of the four options given.
| Column I | Column II |
| (a) Tollen's reagent | (i) Alkaline CuSO4 complexed with sodium citrate |
| (b) Benedict's solution | (ii) Ammonical silver nitrate |
| (c) Fehling solution A | (iii) Alkaline solution of sodium potassium tartarate |
| (d) Fehling solution B | (iv) Aqueous solution of copper sulphate |
Answer & explanation
Correct answer: option 3
(a) Tollen's reagent: Tollen's reagent is ammonical silver nitrate. It is used as silver mirror test for aldehydes.
(b) Benedict's solution: It is Alkaline CuSO4 complexed with sodium citrate. It also give positive test with aliphatic aldehydes but give negative test with aromatic aldehydes.
(c) Fehling solution A: It consists of an aqueous solution of copper sulphate.
(d) Fehling solution B: It consists of an alkaline solution of sodium potassium tartarate or Rochelle salt.