Question

Write two chemical reactions used for black and white photography​

Answer 1

Answer:

The reactions used in black and white photography are decomposition reactions.

Explanation:

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Answer 2

1. AgCl (s) ----light------> 2 Ag (s) + Cl2 (g)

Silver chloride Silver Chlorine

2. AgBr (s) -----light-----> 2 Ag (s) + Br2 (g)

Silver bromide Silver Bromine