ES

Question 1

What will form at the cathode if the metal is more reactive than hydrogen?

Answer 1

Hydrogen gas

Question 2

What is formed at the anode if the solution doesn’t contain a halide?

Answer 2

Oxygen

Question 3

What forms at the anode is the solution is concentrate and contains a halide?

Answer 3

Halogen

Question 4

What forms at the anode if the solution is dilute but contains a halide?

Answer 4

Oxygen

Question 5

Appearance of fluorine at RTP

Answer 5

Pale yellow gas

Question 6

Appearance of chlorine at RTP

Answer 6

Yellow-green gas

Question 7

Appearance of bromine at RTP

Answer 7

Red-brown liquid

Question 8

Appearance of iodide at RTP

Answer 8

Shiny grey solid

Question 9

What happens to the volatility of group 7 as you go down a group?

Answer 9

Decreases

Question 10

What’s formed at the cathode if a metal is less reactive than hydrogen?

Answer 10

Metal will form

Question 11

Colour of chlorine in water

Answer 11

Virtually colourless

Question 12

Colour of bromine in water

Answer 12

Yellow/orange

Question 13

Colour of iodine in water

Answer 13

Brown

Question 14

Colour of chlorine in hexane

Answer 14

Virtually colourless

Question 15

Colour of bromine in hexane

Answer 15

Orange/red

Question 16

Colour of iodine in hexane

Answer 16

Pink/violet