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Coordination Compounds — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryCoordination Compounds1 Mark
MCQ
Developed photography film is due to:
  • A
    $\text{AgBr}$
  • B
    $\left[\mathrm{Ag}\left(\mathrm{S}_2 \mathrm{O}_3\right)_2\right]^{3+}$
  • ✓
    $Ag$
  • D
    $\mathrm{Ag}_2 \mathrm{O}$
✓

Answer

Correct option: C.
$Ag$
The developed photography film is due to $Ag.$
The treatment of the exposed photgraphic film with reducing agent is called developing of the film.
A developer is usually an alkaline solution of hydroquinone or alkaline solution of pyrogallol.
The pairs activated by light are reduced to deposit more of black silver.

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