Question

Assertion :In the following reaction,
$S{O}_2+2H_{2}S⟶3S+2H_{2}O$
1 mole $S{O}_2$ and 1 mole $H_{2}S$ form 3 moles $S$. Reason: $1$ mole $S{O}_2$ and $2$ mole $H_{2}S$ form $3$ moles sulphur and $2$ moles $H_{2}O$.

• A. Both assertion and reason are are true and the reason is the correct explanation for assertion
• B. Both assertion and reason are true but the reason is not the correct explanation for Assertion
• C. Assertion is true but reason is false
• D. Assertion is false but reason is true

Answer 1

The correct option is D Assertion is false but reason is true

$S{O}_2+2H_{2}S⟶3S+2H_{2}O$
So, according to balanced reaction, 1 mole of $S{O}_2$ reacts with 2 moles of $H_{2}S$ to form 3 moles of $S$ and 2 moles of $H_{2}O$. Based on the balanced reaction, we can conclude that assertion is false as the number of moles of the reactant and the product involved in the reaction is incorrectly stated, but the reason is correct. So, option D is correct.