Question

If 6 litre of $H_2$ and 5.6 litre of $C{l}_2$ are mixed and exploded in an eudiometer, the volume of HCI formed is:

• A. 6.0 litre
• B. 5.6 litre
• C. 11.2 litre
• D. 11.6 litre

Answer 1

The correct option is C 11.2 litre

The reaction involved is,
$H_2+C{l}_2\to 2HCl$
means $\text{1 mole or 1 litre of}$ $H_2$ needs $\text{1 mole or 1 litre of}$ $C{l}_2$ to react completely and will form $\text{2lit of HCl}$.
Since we have $H_2$$\text{= 6 litre}$ and $C{l}_2$ $\text{= 5.6 litre}$, so their is $C{l}_2$ present in insufficient amount.
Hence, limiting reagent is $C{l}_2$.
So, the reaction will involved reaction between $\text{5.6 litre of}$ $C{l}_2$ with $\text{5.6 litre of}$ $H_2$ and $\text{0.4 litre of}$ $H_2$ will remain unreacted.
Hence, $\text{5.6 litre of}$ $C{l}_2$ will produce,
$\text{5.6}\times \text{2 = 11.2 litre of HCl}$.
Hence the answer is option $C$.