Sodium thiosulphate is used in photography [UPSEAT 1999] – McqOptions

MCQOPTIONS

1.	Sodium thiosulphate is used in photography [UPSEAT 1999]
A.	To convert metallic silver into silver salt
B.	AgBr grain is reduced to non-metallic silver
C.	To remove reduced silver
D.	To remove undecomposed AgBr in the form of \[N{{a}_{3}}[Ag{{[{{S}_{2}}{{O}_{3}})}_{2}}]\] (a complex salt)
Answer» B. AgBr grain is reduced to non-metallic silver

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