Hypo is used in photography to

Reduce $$AgBr$$ grains to metallic silver

Convert the metallic silver to silver salt

Remove undecomposed silver bromide as a soluble complex

Remove reduced silver

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Solution

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Correct option is C. Remove undecomposed silver bromide as a soluble complex

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Hypo is used in photography because:

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Hypo is used in photography because of its

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How does the 'hypo' used in photography ?

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Isn't AgBr used in black and white photography?
Q. In black and white photography, the developed film is fixed by washing with
(1) AgBr solution
(2) Hypo solution
(3)

N a_{2} S_{4} O_{6}

solution
(4)

F e C_{2} O_{4}

solution
Sol. Answer (2)
In black and white photography hypo solution is used.

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N a_{2} S_{2} O_{3} \cdot 5 H_{2} O

is used in photography to :

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