Question

Match List-I with List-II : List - I(Test/reagent)	List - II(Radical identified)
(A) Lake Test	(I) NO3−
(B) Nessler’s Reagent	(II) Fe3+
(C) Potassium sulphocyanide	(III) Al3+
(D) Brown Ring Test	(IV) NH4+
Identify the correct answer from the options given below :

• A. A-IV, B-II, C-III, D-I
• B. A-II, B-IV, C-III, D-I
• C. A-II, B-III, C-IV, D-I
• D. A-III, B-IV, C-II, D-I

Answer 1

Answer: (D)

A-III, B-IV, C-II, D-I

Answer 2

The correct matches are:
Lake test is used to identify Al$^{3+}$ ions. Thus A-III. Nessler's reagent is used to detect NH$_4^+$ ions. Thus B-IV.
Potassium sulphocyanide is used to identify Fe$^{3+}$ ions. Thus C-II.
Brown ring test is used to identify NO$_3^-$ ions. Thus D-I.
Therefore, the correct option is (4): A-III, B-IV, C-II, D-I