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Sodium thiosulphate is added in photography to
Options
(a) improve colour of photograph
(b) remove unreacted AgBr
(c) form latent image
(d) to form a better picture
Correct Answer:
remove unreacted AgBr
Explanation:
AgBr + 2 Na₂S₂O₃ → Na₃ [Ag (S₂O₃)₂] + NaBr
Solution of sodium thiosulphate is used as fixer. It forms a soluble complex with silver halides. After fixing, the film can safely be brought out into daylight.
Related Questions: - SO₂ reacts with Cl in sunlight to form
- The plot of concentration of the reactant vs time for a reaction is a straight
- An aqueous solution of CoCl₂ on addition of excess of concentration HCl
- Which of the following is ferroelectric compound
- The screening effect of d-electrons is
Topics: D and F Block Elements
(91)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- SO₂ reacts with Cl in sunlight to form
- The plot of concentration of the reactant vs time for a reaction is a straight
- An aqueous solution of CoCl₂ on addition of excess of concentration HCl
- Which of the following is ferroelectric compound
- The screening effect of d-electrons is
Topics: D and F Block Elements (91)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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