Sodium thiosulphate is used in photography:
as $A g B r$ grain is reduced to non-metallic silver
to convert metallic silver into silver salt
to remove undecomposed $A g B r$ in the form of $N a_{3} [A g (S_{2} O_{3})_{2}]$ (a complex salt)
to remove reduced silver

Question

Sodium thiosulphate is used in photography:
as $A g B r$ grain is reduced to non-metallic silver
to convert metallic silver into silver salt
to remove undecomposed $A g B r$ in the form of $N a_{3} [A g (S_{2} O_{3})_{2}]$ (a complex salt)
to remove reduced silver

Toppr Admin · Accepted Answer

In photography- undecomposed AgBr is removed with the help of sodium thiosulphate- i-e- hypo-AgBrsodiumbromide-2Na2S2O3sodiumthiosulphate-x2192-Na3-Ag-S2O3-2-sodiumargerntothiosulphate-NaBr

Sodium thiosulphate is used in photography:as AgBr grain is reduced to non-metallic silverto convert metallic silver into silver saltto remove undecomposed AgBr in the form of Na3[Ag(S2O3)2] (a complex salt)to remove reduced silver

In photography, undecomposed AgBr is removed with the help of sodium thiosulphate, i.e., hypo.AgBrsodiumbromide+2Na2S2O3sodiumthiosulphate→Na3[Ag(S2O3)2]sodiumargerntothiosulphate+NaBr

Sodium thiosulphate is used in photography:
as $A g B r$ grain is reduced to non-metallic silver
to convert metallic silver into silver salt
to remove undecomposed $A g B r$ in the form of $N a_{3} [A g (S_{2} O_{3})_{2}]$ (a complex salt)
to remove reduced silver

In photography, undecomposed AgBr is removed with the help of sodium thiosulphate, i.e., hypo.

$A g B r s o d i u m b r o m i d e + 2 N a_{2} S_{2} O_{3} s o d i u m t h i o s u l p h a t e \to N a_{3} [A g (S_{2} O_{3})_{2}] s o d i u m a r g e r n t o t h i o s u l p h a t e + N a B r$