Q28 / 160 · TS EAMCET 2019 (03 May Shift 2) · Chemistry

Which is the correct equation for the reaction of AgCl with NH4OH?

  • A
    AgCl+NH4OH→AgOH+NH4++Cl-
  • Correct answer
    B
    AgCl+2NH4OH→AgNH32++Cl-+2H2O
  • C
    AgCl+4NH4OH→AgNH34++Cl-+4H2O
  • D
    2AgCl+NH4OH→Ag2O+NH4++H++2Cl-

Solution

Reaction of AgCl with NH4OH is a complexation reaction.

AgCl+2NH4OH→AgNH32++Cl-+2H2O

AgCl is white colour water insoluble compound but in the presence of NH3 its solubility increase due to formation of complex Ag(NH3)2+.

[Ag(NH3)2]Cl is the formed complex.

Hence, the correct answer is option: 'B'.

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