Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Write balanced chemical equation for developing a black and white photographic film. Also give reason why the solution of sodium thiosulphate on acidification turns milky white and give balance equation of this reaction

Write balanced chemical equation for developing a black and white photographic film. Also give reason why the solution of sodium thiosulphate on acidification turns milky white and give balance equation of this reaction

Grade:11

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
6 years ago
When a PHOTOGRAPHIC FILM is treated with HYPO,the AgCl on the film reacts with the Na2S2O3 forms a complex Na3[Ag(S2O3)] along with NaBr.
Hence the reaction is AgCl+Na2S2O3——->Na3[Ag(S2O3)]+NaBr.
When HYPO is reacted with SULPHURIC ACID,it forms Sodium Sulphate along with Sulphurdioxide and Sulphur along with water.
Na2S2O3+2H2SO4——->Na2SO4+SO3+S+4H2O

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free