Nucleophilic Substitution Reactions

Which one of the following will undergo nucleophilic substitution with sodium hydroxide (aq)?

• ethene

• ethane

• bromoethane

• cyclopentane

what is a nucleophile?

• a species that has lone pair of electron

• negatively charged ion

• positively charged ion

• a species that has one unpaired electron

how can nucleophiles be formed?

• homolytic fission

• heterolytic fission

which of the following is the condition for the reaction of bromomethane and potassium cyanide?

• ethanolic condition

• heated under reflux

• both ethanolic and heated under reflux

what is the mechanism of the reaction when sodium hydroxide in ethanolic condition reacts with cloroethane under reflux?

• nucleophilic substitution

• electrophilic addition

• free radical substitution

• elimination

which of the following is not the condition for the reaction between ammonia and chloromethane for nucleophilic substitution?

• aqueous ammonia

• ethanolic ammonia

• excess ammonia

• heated under reflux

Which of the following is not the product of elimination reaction between ethanolic sodium hydroxide and chloroethane?

• sodium chloride

• water

• ethene

• hydrogen chloride gas

what is the mechanism for the reaction between chloromethane and sodium hydroxide solution heated under reflux?

• free radical substitution

• electrophilic addition

• nucleophilic addition

• nucleophilic substitution

what is the type of reaction between chloromethane and ethanolic sodium hydroxide heated under reflux?

• nucleophilic substitution

• elimination

• electrophilic addition

• electrophilic substitution

which of the following is not required for the reaction of halogenoalkanes with KCN?

• heated under reflux

• heat under pressure

• ethanol