2.6 Halogenoalkanes

Question 1

Halogenoalkane

Answer 1

Is an alkane in which one or more hydrogen atoms have been replaced by a halogen

Question 2

Nucleophile

Answer 2

Is a species with a lone pair of electrons that can be donated to an electron-deficient species

Question 3

Reflux

Answer 3

Is a process of continuous evaporation and condensation

Question 4

Hydrolysis

Answer 4

Is a reaction with water to produce a new product

Question 5

What is the general formula for a halogenoalkane?

Answer 5

C_nH_{2n + 1}X

Question 6

Electronegativity of a halogenoalkane decreases as the size of the halogen …

Answer 6

Increases

Question 7

During the test for a particular halogen in a halogenoalkane, with an addition of aqueous silver nitrate, the precipitate turns white, what is the halogen?

Answer 7

Chlorine

Question 8

During the test for a particular halogen in a halogenoalkane, with an addition of aqueous silver nitrate, the precipitate turns Cream, what is the halogen?

Answer 8

Bromine

Question 9

During the test for a particular halogen in a halogenoalkane, with an addition of aqueous silver nitrate, the precipitate turns Yellow, what is the halogen?

Answer 9

Iodine

Question 10

Elimination reaction

Answer 10

Is one that involves the loss of a small molecule to produce a double bond

Question 11

What are three uses for halogenoalkanes?

Answer 11

1. Solvents
2. Anaesthetics
3. Refrigerants

Question 12

Why can halogenoalkanes mix with both polar and non-polar substances?

Answer 12

Because the halogenoalkanes have both a polar end(carbon halogen bond) and a non-polar end(ordinary alkyl chain).

Question 13

CFC’s

Answer 13

Are halogenoalkanes containing both chlorine and fluorine

Question 14

Ozone Layer

Answer 14

A layer surrounding the earth that contains O₃ molecules

Question 15

HFC’s

Answer 15

Halogenoalkanes containing fluorine as the only halogen