Question

Which of the following reagents are used to prepare chloroethane from ethene?

• A. (i)$H_2/Pd$, (ii)$C{l}_2/h\nu$
• B. (i)$C{l}_2/h\nu$, (i)$H_2/Pd$
• C. $CHC{l}_3$
• D. None of the above

Answer 1

The correct option is A (i)$H_2/Pd$, (ii)$C{l}_2/h\nu$

The correct answer is option (a). Because in the presence of $H_2/Pd$, catalytic hydrogenation of alkene takes place which results in alkane. Free radical chlorination of alkane gives corresponding chloroalkane.