Question

Classify the following reactions in one of the reaction types studied.
a. $C{H}_{3}C{H}_{2}Br+H{S}^{\ominus }\to C{H}_{3}C{H}_{2}SH+B{r}^{\ominus }$

b. ${\left(C{H}_3\right)}_{2}C=C{H}_2+HCl\to {\left(C{H}_3\right)}_2\left(Cl\right)C-C{H}_3$

c. ${\left(C{H}_3\right)}_{3}C-C{H}_{2}OH+HBr\to {\left(C{H}_3\right)}_{2}C\left(Br\right)C{H}_{2}C{H}_3$

d. $C{H}_{3}C{H}_{2}Br+H{O}^{\ominus }\to C{H}_2=C{H}_2$

• A. a.Nucleophilic substitution and 1, 2-Methyl shift
  b. Nucleophilic substitution reaction
  c. Elimination reaction
  d. Addition reaction
• B. a.Addition reaction
  b. Nucleophilic substitution reaction
  c. Elimination reaction
  d. Nucleophilic substitution and 1, 2-Methyl shift
• C. a. Nucleophilic substitution reaction
  b. Addition reaction
  c. Nucleophilic substitution and 1, 2-Methyl shift
  d. Elimination reaction
• D. a.Addition reaction
  b. Nucleophilic substitution reaction
  c. Nucleophilic substitution and 1, 2-Methyl shift
  d. Elimination reaction

Answer 1

Answer: (C)

a. Nucleophilic substitution reaction

b. Addition reaction
c. Nucleophilic substitution and 1, 2-Methyl shift
d. Elimination reaction
a. Nucleophilic substitution reaction as bromide ion is substituted with $H{S}^{-}$ ion.
b. Addition reaction as HCl is added to carbon carbon double bond.
c. Nucleophilic substitution and 1, 2-Methyl shift as hydroxide ion is substituted with bromide ion and involves rearrangement of methyl group.
d. Elimination reaction as molecule of HBr is eliminated.