Math the following questions:

Column-1	column-2
Name of the salt	Formula
(i) Ammonium Chloride	(P) CuSO4​
(ii) Copper sulfate	(Q) NaCl
(iii) Sodium chloride	(R) Mg(NO3​)2
(iv) Magnesium Nitrate	(S) NH4​Cl
(v) Calcium nitrate	(T) Ca(NO3​)2

While the anion is always formed from acid, the cation is always derived from base. The chemical formula for salt is presented in this manner.
I Ammonium chloride is a compound salt that contains both the ammonium and chloride ions necessary to produce both chloride and hydronium ions in an acidic solution.
(ii). Any copper and sulfuric acid complex that produces sulphate ions in solution is called copper sulphate.
(iii). The salt of sodium and chloride ions that gives chloride ions and hydronium ions to acidic solutions is called sodium chloride.
(iv). Magnesium nitrate, which provides magnesium ion and chloride in basic solution, is the salt of magnesium ion and nitrate ion.

(v). Iodine and hydronium ions are produced by potassium sulphate, a salt of sulphuric acid, in basic and acidic solutions, respectively.
(vi). The salt of calcium compound and nitric acid, known as calcium nitrate, provides hydronium and nitrate ions in acidic solution.

Hence, option B is correct.