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Halogen Exchange Reactions

Hypo dissolve...

Question

Hypo dissolves unreacted $A g B r$ of the photographic film by following reaction
$A g B r + 2 S_{2} O_{3}^{2 -} ⟶ [A g (S_{2} O_{3})_{2}]^{3 -} + B r^{-}$

True

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False

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Solution

The correct option is A True
The fixer stabilises the image, removing the unexposed silver halide remaining on the photographic paper, leaving behind the reduced metallic silver that forms the image.
The reaction involved:
$A g B r + 2 S_{2} {O_{3}}^{- 2} ⟶ [A g (S_{2} O_{3})_{2}]^{- 3} + B r^{-}$

Suggest Corrections

Similar questions

A g B r (s) + 2 S_{2} O_{3}^{2 -} (e q) ⇌ A g (S_{2} O_{3})_{2}^{3 -} (a q) + B r^{-} (a q)

A g B r

4.3 \times 10^{- x}

x

K_{s p}

A g B r = 4.5 \times 10^{- 13}

K_{f}

A g (S_{2} O_{3})_{2}^{3 -} = 2.0 \times 10^{13}

A g B r (s) + 2 S_{2} O_{3}^{2 -} (e q) ⇌ A g (S_{2} O_{3})_{2}^{3 -} (a q) + B r^{-} (a q)

A g B r

4.3 \times 10^{- x}

x

K_{s p}

A g B r = 4.5 \times 10^{- 13}

K_{f}

A g (S_{2} O_{3})_{2}^{3 -} = 2.0 \times 10^{13}

A g B r

A g B r

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