In photography,sodium thiosulphate is used as | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) . In order to make the image permanent,it is necessary to remove the unreduced silver bromide from the surface of the developed film. This operati

Vedclass · Accepted Answer

Complexing agent

Vedclass · Answer

(A) . In order to make the image permanent,it is necessary to remove the unreduced silver bromide from the surface of the developed film. This operation is called fixing of the image. Fixing is done by dipping the developed film or plate in a sodium thiosulphate (hypo) solution. The hypo solution dissolves the unreduced silver bromide by forming a complex: $AgBr + 2Na_2S_2O_3 	o Na_3[Ag(S_2O_3)_2] + NaBr$. Thus,sodium thiosulphate acts as a complexing agent.

In photography,sodium thiosulphate is used as:

Similar Questions

Coordination compounds are of great importance in biological systems. In this context,which of the following statements is incorrect?

Chlorophyll is a coordination compound of . . . . . . .

Coordination compounds have significant importance in biological systems. In this context,which of the following statements is incorrect?

Hemoglobin is a complex of which of the following?

The colour of light absorbed by an aqueous solution of $CuSO_4$ is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module