Question

1.
The reaction which is used in black and white photography is :
(a) 2AgBr
sunlight_>2Ag +Br2
(b) CH4+Cl2
sunlight
t_CH,C12) +HCI)
Electric current
(c) 2 NaCl
Nas) +C123
Heat
(d) 2KCIO
→2KC1, +302(8)
3(s)

Answer 1

Answer:

Option (a)

The reaction which is used in black and white photography is decomposition reactions.