Alcohols Flashcards Preview

National 5 Chemistry > Alcohols > Flashcards

Flashcards in Alcohols Deck (16)
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1
Q

What do alcohols functional groups contain??

A

-OH

2
Q

General formula of an alcohol?

A

CnH2n+1OH

3
Q

As the number of carbon atoms in the alcohol increase the boiling point ????

A

Increases

4
Q

As the number of carbon atoms in the alcohol increases the solubility????

A

Decreases

5
Q

Carboxylate acids end in

A

-OIC ACID

6
Q

Carboxylic acids contain which functional group??

A

-COOH

7
Q

General formula of a carboxylic acid

A

CnH2n+1 COOH

8
Q

Uses of carboxylic acids

A

Preservatives
Feedstocks for dyes and paints
Manufacture of nylon and polyester
Drug preparation

9
Q

Esters are formed by

A

Condensation reaction between an alcohol and a carboxylic acid

10
Q

What happens in a condensation reaction?

A

The alcohol and carboxylic acid molecules join together by the reaction of their functional groups to make water

11
Q

How is an ester link formed

A

By the reaction of the hydroxyl group with a carboxyl group

12
Q

Compare straight chain alkane to straight chain alcohol with the same number of carbon atoms

A

Alcohol has a higher boiling point than alkanes

13
Q

Compare alcohol isomers with -OH on carbon 1 and -OH on Carbon 2

A

Alcohol with -OH group on the 1st carbon has a higher boiling point

14
Q

Are alcohols soluble in water?

A

Yes

As the number of carbon atoms in alcohol increases, the solubility if the alcohol in water decreases

15
Q

Uses for alcohols

A
Alcoholic drinks 
Solvents 
Fuel 
Car de icers and thermometers 
Feedstock eg vinegar
16
Q

What do alcohol names end in??

A

-OL