Q. Which property of $Na_{2}S_{2}O_{3}$ makes it useful in photography?
A) Photochemical property
B) Complex formation property
C) Oxidising agent
D) Reducing agent
Explanation
(b)
Sodium thiosulphate $\left( Na_{2}S_{2}O_{3} \right)$ is useful in photography due to its complex formation property. It is used in photography as a fixer since, it dissolves unexposed silver bromide.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.