Question

$\left(A\right)+C{l}_2\stackrel{hv}{\to }monochloroproduct$
To maximise the yield of monochloro product in the above reaction?

• A. $C{l}_2$ must be added in excess
• B. Reactant (A) must be added in excess
• C. Reaction must be carried out in dark
• D. Reaction must be carried out with equimolar mixture of $C{l}_2$ and A

Answer 1

The correct option is B Reactant (A) must be added in excess

To maximize the yield of monochloro product the alkane/alkene/alkyne i.e. the hydrocarbon reactant has to be taken in excess. On the other hand, to maximize the yield of polychloro product, chlorine has to be taken in excess.