Verified Solution • 2025–26 Session moderate

QJEEAdv16Che945: JEE Advanced 2016 Chemistry - Class 12 JEEAdv16Che945 Solution: In the following reaction, sequence in aqueous solution, the…

In the following reaction, sequence in aqueous solution, the species X, Y and Z, respectively, are

S2O32−⟶Ag+XClearsolution⟶Ag+YWhiteprecipitate⟶WithtimeZBlackprecipitate

Multiple Choice Options

  • A [Ag(S2O3)2]3−, Ag2S2O3, Ag2S
  • B [Ag(S2O3)2]5−, Ag2SO3, Ag2S
  • C [Ag(SO3)2]3−, Ag2S2O3, Ag
  • D [Ag(SO3)3]3−, Ag2SO4, Ag

Step-by-Step Verified Solution

Ag+2S2O32−(Excess)→[Ag(S2O3)2]3−Argentothiosulphate(X)(Soluble)⟶Ag+Ag2S2O3(Y)(Whiteppt.)⟶(duetohydrolysis)WithtimeAg2S(Z)(Blackppt.)

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