McqMate
| Q. |
The chemical used as a fixer in photography is - |
| A. | sodium thiosulphate |
| B. | sodium sulphate |
| C. | borax |
| D. | ammonium sulphate |
| Answer» A. sodium thiosulphate | |
|
Explanation: Fixation is commonly achieved by treating the film or paper with a solution of thiosulfate salt. Popular salts are sodium thiosulfate — commonly called hypo — and ammonium thiosulfate — commonly used in modern rapid fixer formulae. |
|
View all MCQs in
ChemistryNo comments yet