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In the following reaction sequence in aqueous solution, the species X, Y and Z respectively, are S 2 O 3 2 − → Ag + X Clear Solution → Ag + Y White Precipitate → With time Z Black Precipitate

Options

  1. AA g S 2 O 3 2 3 - , A g 2 S 2 O 3 , A g 2 S
  2. BA g S 2 O 3 3 5 - , A g 2 S O 3 , A g 2 S
  3. CA g S O 3 2 3 - , A g 2 S 2 O 3 , A g
  4. DA g S O 3 3 3 - , A g 2 S O 4 , A gS

Correct answer

A. A g S 2 O 3 2 3 - , A g 2 S 2 O 3 , A g 2 S

Step-by-step solution

So, X , Y and Z are A g S 2 O 3 2 3 - , A g 2 S 2 O 3 and A g 2 S respectively.

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