C10: Organic Reactions

Question 1

What is the general formula of alkenes when they contain one C=C (Double Bond)

Answer 1

CnH2n

Question 2

What is formed in complete combustion of alkenes

Answer 2

Carbon dioxide and water

Question 3

What do alkenes react with when you add atoms across the C=C

Answer 3

Halogens, Hydrogen and water

Question 4

What happens when Dobby has no master

Answer 4

Dobby is a free Elf

Question 5

What functional group does the homologous series of alcohols contain

Answer 5

-OH

Question 6

What functional group does the homologous series of carboxylic acids contain

Answer 6

-COOH

Question 7

What functional group does the homologous series of esters contain

Answer 7

-COO-

Question 8

What is alcohol used as and what is the main alcohol in alcoholic drinks

Answer 8

Solvents, fuels

Ethanol

Question 9

What is formed when alcohols burn in air

Answer 9

Carbon dioxide and water

Question 10

When alcohols react with sodium metal, what solution is formed and what gas is given off

Answer 10

Sodium alkoxide solution is formed

Hydrogen gas given off

Question 11

How can ethanol be oxidised to ethanoic acids

Answer 11

Either by chemical oxidising or by the action of microbes in the air

Question 12

Hey fish face, look what I’ve got

Answer 12

I got a jar o’ dirrrt, I got a jar o’ dirrrrt and guess what’s inside it

Question 13

What happens when carbonates are output in solutions of carboxylic acids

Answer 13

Gently fizz, releasing carbon dioxide gas

Question 14

Aqueous solutions of carboxylic acids are weak acids. What does this mean

Answer 14

They have a higher oh value than solutions of strong acids of the same concentration

Question 15

How are esters made

Answer 15

Reacting a carboxylic acid with an alcohol in the presence of a strong acid catalyst

Question 16

What are esters

Answer 16

Volatile, fragrant compounds used in flavourings and perfume