Write equations for the reactions : (i) dil. HCl and sodium thiosulphate. (ii) dil. HCl and lead nitrate soln.

(i) Na2S2O3 + 2HCl ⟶ 2NaCl + SO2 + S + H2O

(ii) Pb(NO3)2 + 2HCl ⟶ PbCl2 ↓ + 2HNO3

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