Write true or false for the following statement:
The thermal decomposition reaction of calcium sulphate (gypsum) is used in black and white photography.
The thermal decomposition reaction of calcium sulphate (gypsum) is used in black and white photography.
(FALSE) The statement is False.
In black and white photography,the decomposition reaction of silver chloride $(AgCl)$ or silver bromide $(AgBr)$ is used,not calcium sulphate.
The reaction is: $2AgCl(s) \xrightarrow{sunlight} 2Ag(s) + Cl_2(g)$.
In black and white photography,the decomposition reaction of silver chloride $(AgCl)$ or silver bromide $(AgBr)$ is used,not calcium sulphate.
The reaction is: $2AgCl(s) \xrightarrow{sunlight} 2Ag(s) + Cl_2(g)$.
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