Alcohols 🍷

Question 1

What are the alcohols functional group?

Answer 1

-OH
Hydroxyl group

Question 2

What are the three type of alcohols?

Answer 2

Primary, Secondary and tertiary

Question 3

What does volatility mean?

Answer 3

How readily a substance turns into a gas

Question 4

Why do alcohols have a higher boiling point than Alkanes even though there is the same number of carbon atoms?

Answer 4

Alkanes have only London dispersion forces, which are weak. Whereas Alcohols have both London dispersion forces and Hydrogen bonds which makes them even relatively stronger therefore needing more energy to break the bonds

Question 5

Why does the boiling point of alkanes and alcohols get closer as carbon chains increase?

Answer 5

There are more London dispersion forces as carbon chain increases in alkanes, so the hydrogen bonding in alcohols doesn’t count for much

Question 6

Why are alcohols less volatile than alkanes?

Answer 6

Alcohols have hydrogen bonds which need high energy to break so are less volatile

Question 7

What is the general formula of Alcohols?

Answer 7

CnH2n+1OH

Question 8

What is the solubility of alcohols in water?

Answer 8

Alcohols have polar O-H bonds and alcohols molecules are polar so molecules interact

Question 9

Why are shorter alcohol molecules more soluble than longer ones?

Answer 9

There are fewer hydrocarbons within shorter ones so fewer nonpolar molecules