Question

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

Answer 1

Answer:

Silver chloride turns grey when kept in sunlight.

∵ Silver chloride which is white colour turns to grey colour silver due to decomposition reaction which occur in presence of sunlight. Such reactions are called as Photo chemical reactions.

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Answer 2

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

Decomposition Response:

• A chemical reaction that results in the breakdown of one reactant into two or more products is known as a decomposition reaction.
• Decomposition reactions often demand energy input.

For instance:

1. The thermal breakdown of potassium chlorate (KClO3) is a typical technique for generating oxygen gas in laboratories.
2. The electrolysis of molten sodium chloride (NaCl) at high temperatures results in the formation of sodium (Na) and chlorine (Cl2), which is another breakdown reaction.
3. The decomposition of mercury oxide (HgO) with heat to produce mercury metal (Hg) and oxygen gas is a decomposition process that has played a significant role in the history of chemistry. Carl Wilhelm Scheele, Joseph Priestley, and Antoine-Laurent Lavoisier conducted investigations on oxygen using this reaction in the 18th century.

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