Group 17 and Group 18 chemistry

Question 1 of 10

The halogen that is a liquid at room temperature is ___.

Question 2 of 10

In the laboratory, chlorine can be prepared by

Question 3 of 10

Halogens are good oxidising agents because they

Question 4 of 10

When chlorine reacts with potassium iodide solution, the solution turns brown because ___ is formed.

Question 5 of 10

The most reactive halogen is ___.

Question 6 of 10

Describe and explain what happens when chlorine water is added separately to solutions of potassium bromide and potassium iodide. Write ionic equations and explain what this shows about reactivity.

Question 7 of 10

Helium is used in weather balloons because it

Question 8 of 10

Chlorine reacts with water to form hydrochloric acid and ___ acid.

Question 9 of 10

Iodine can displace chlorine from sodium chloride solution.

Question 10 of 10

Fluorine is the most reactive halogen.