Question

$I$. Decomposition reactions increase the level of entropy.
$II$. Decomposition reactions result in the formation of a number of product substances which is greater than the number of reactant substances present before the chemical change took place.

• A. Statement $I$ is true, Statement $II$ is true and is a correct explanation of the phenomena described in $I$
• B. Statement $I$ is true, Statement $II$ is false
• C. Statement $I$ is false, Statement $II$ is true
• D. Statement $I$ is false, Statement $II$ is false

Answer 1

The correct option is A Statement $I$ is true, Statement $II$ is true and is a correct explanation of the phenomena described in $I$

• Decomposition reaction is the separation of single compound into simpler compound.
• As the randomness or no. of products increase ,entropy increases.
• Statement I and II are true and II is correct explanation of I.