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 sulphur. Reason: $1$ mole $S{O}_2$ and $2$ moles $H_{2}S$ form $3$ moles sulphur and $2$ moles $H_{2}O$.

• A. Both Assertion and Reason are are true and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are true but 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

$S{O}_2+2H_{2}S⟶3S+2H_{2}O$
1 mole 2 mole 3 mole 2 mole
So, according to balanced reaction, $1$ mole of $S{O}_2$ reacts with $2$ moles of $H_{2}S$ and $3$ moles of $S$ and $2$ moles of $H_{2}O$ forms.