alleryIn black and white photography, hypo dissolves leftover AgBr by forming:
A[Ag(CN)₂]⁻
BAg₂S₂O₃
C[Ag(S₂O₃)₂]³⁻
D[Ag(NH₃)₂]⁺
Answer & Solution
Correct answer: C. [Ag(S₂O₃)₂]³⁻
Thiosulphate in hypo binds Ag⁺ as the soluble [Ag(S₂O₃)₂]³⁻ ion, fixing the developed film.
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