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If the molecular wt. of ( Na ₂ ~S ₂ O ₃ ) and ( I ₂ ) are ( M ₁ ) and ( M ₂ ) respectively, then what will be the equivalent wt. of ( Na ₂ ~S ₂ O ₃ ) and ( I ₂ ) in the following reaction? (2 ~S ₂ O ₃²⁻+ I ₂ S ₄ O ₆²⁻+2 I ⁻ )

Options

  1. A( M ₁, M ₂ )
  2. B( M ₁, M ₂ / 2 )
  3. C(2 M ₁, M ₂ )
  4. D( M ₁, 2 M ₂ )

Correct answer

B. ( M ₁, M ₂ / 2 )

Step-by-step solution

Hints: ( aligned & n.f. ( S ₂ O ₃²⁻ )=1, Equivalent mass = M ₁ 1 = M ₁ & n f . ( I ₂ )=2, Equivalent mass = M ₂ 2 aligned )

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