2.8 Haloalkanes Flashcards Preview

Chemistry AS > 2.8 Haloalkanes > Flashcards

Flashcards in 2.8 Haloalkanes Deck (15)
Loading flashcards...
1

What is a nucleophile?

An electron pair donor. Reagents that attack and form bonds with positively charged carbon atom

2

Name 3 nucleophiles?

Hydroxide ion OH-
Ammonia NH3
Cyanide ion CN-

3

When drawing mechanisms, what do the arrows show?

The movement of a pair of electrons

4

In an elimination reaction, what is the OH- ion acting as?

A base

5

What is a primary haloalkane?

An haloalkane where the carbon that the halogen its bonded to, only forms a bond with one other carbon atom

6

What is a secondary haloalkane?

An haloalkane in which the carbon that the halogen is bonded to is bonded to two other carbons

7

How does bond Enthalpy affect the rate of nucleophilic substitution?

A lower bond Enthalpy increases the rate

8

What type of light is needed for free radical substitution?

UV light

9

Name the 3 different stages in free radical substitution

Initiation, propagation, termination

10

What is needed for multi substitution to occur?

Excess free radicals

11

What is the general formula for haloalkanes?

CnH2n+1X

12

Which halogen carbon bond has the highest bond Enthalpy?

C-F

13

How do we list the different halogens when naming the haloalkane?

Alphabetical order

14

Are haloalkanes soluble?

No

15

What happens to the boiling point of haloalkanes as we go down the halogen group?

Increases