Question

Which among the following statement(s) is /are true? Exposure of silver chloride to sunlight for a long duration turns grey due to:
JPSGN/EXAM/X/SCI/MT1/QP/SETA/21-22 Page 2
A) The formation of silver by decomposition of silver chloride B) Sublimation of silver chloride
C) Decomposition of chlorine gas from silver chloride D) Oxidation of silver chloride.

Answer 1

Correct Question:-

Exposure of silver chloride to sunlight for a long duration turns grey due to:

• A) The formation of silver by decomposition of silver chloride.
• B) Sublimation of silver chloride.
• C) Decomposition of chlorine gas from silver chloride.
• D) Oxidation of silver chloride.

Explanation:-

Silver chloride is halide of silver metal which undergoes photodecomposition in the presence of light. The colour of silver chrloide changes to grey because of the formation of silver metal.

Decomposition is of three types mainly: electrolysis, photolysis and thermolysis. Here, lysis means break down. Examples are: Decomposition of water in presence of electricity, photodecomposition of silver halides and thermal decomposition of calcium carbonate$.$

Answer 2

Answer:

$\purple{ \boxed{\texttt{Question :-}}}$

Which among the following statement(s) is(are) true?

Exposure of silver chloride to sunlight for a long duration turns grey due to:

A) The formation of silver by decomposition of silver chloride.

B) Sublimation of silver chloride.

C) Decomposition of chlorine gas from silver chloride.

D) Oxidation of silver chloride.

$\purple{ \boxed{\texttt{Correct\: Options\: is :-}}}$

A) The formation of silver by decomposition of silver chloride.

Hence,

Exposure of silver chloride to sunlight for a long duration turns grey due to the formation of silver by decomposition of silver chloride.

${\large{\bold{\red{\underline{Explanation :-}}}}}$

• When silver chloride is exposed to light, it decomposes to form silver metal and chlorine gas.
• White colour of silver chloride changes to grey due to formation of silver metal. This is also known as photolytic decomposition reaction as it takes place in the presence of sunlight.

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${\large{\bold{\purple{\underline{Extra\: Brainly\: Shots :-}}}}}$

$\qquad\qquad\underline{\textsf{\textbf{ \color{magenta}{Silver\: chloride :-} }}}$

• Silver chloride is a chemical compound with the chemical formula AgCl.
• It has several disinfectant and antiseptic properties and is also used in the treatment of mercury poisoning.
• AgCl is ionic in nature and referred as an ionic compound.