Haloalkanes And Haloarenes

Question 1

Freon

Answer 1

• CCl₂F₂
• chemically inert, non-toxic, non- corrosive
• used as refrigerant and propellent

Question 2

What does R and S config correspond to?

Answer 2

• R and S config corresponds to enantiomers of an optically active compound

Question 3

Optical isomers that are not enantiomers are called

Answer 3

Diastereoisomers

Question 4

E1 reaction

Answer 4

• β elimination
• Unimolecular (like SN1)
• nucleophile takes β hydrogen attached to carbocation and alkene is obtained

Question 5

E2 reaction

Answer 5

• β elimination
• Bimolecular (Like SN2)
• Nucleophile takes β hydrogen while simultaneously the leaving group goes… Alkene is obtained

Question 6

Use of DDT

Answer 6

Insecticide

Question 7

Use of Triiodomethane

Answer 7

• aka iodoform
• used as antiseptic

Question 8

Use of trichloromethane

Answer 8

• CHCl3 (chloroform)
• solvent for alkaloids

Question 9

Freon -12 is manufactured from CCl₄ by

Answer 9

CHCl₃ –light/O₂–› COCl₂ –AgF–› CCl₂F₂

• swartz reaction

Question 10

Correct order of reactivity for alkyl group in SN1 and SN2

Answer 10

RI > RBr > RCl > RF