Question

During halogenation of alkanes, the halogens and alkane show a specific trend. Which of the following statements is not correct?

• A. The reactivity of halogens is in the order $F_2>C{l}_2>B{r}_2>I_2$.
• B. For a given halogen the reactivity of hydrocarbon is in the order of $3^o>2^o>1^o$.
• C. Bromine is less reactive than chlorine towards a particular alkane.
• D. On chlorination monosubstituted product is formed while on bromination disubstituted products are formed.

Answer 1

The correct option is D On chlorination monosubstituted product is formed while on bromination disubstituted products are formed.

Number of monohalogen products of alkane depends upon the number of different types of replaceable hydrogen atoms in the alkane, not on the halogen. So chlorine and bromine will give the same number of substitutions.

So (D) is incorrect.