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Chemistry

Chemistry · Quick practice · answer shown after each question

The halogens

Question 1 of 10

Question 1 of 10

Chlorine is added to drinking water mainly to

Question 2 of 10

Question 2 of 10

The halogen used in toothpaste to prevent tooth decay is

Question 3 of 10

Question 3 of 10

Chlorine is added to drinking water to

Question 4 of 10

Question 4 of 10

The halogens exist as

Question 5 of 10

Question 5 of 10

Chlorine displaces bromine from potassium bromide because chlorine is

Question 6 of 10

Question 6 of 10

Silver halide precipitates: AgCl is white, AgBr cream and AgI is

Question 7 of 10

Question 7 of 10

Iodine at room temperature is a

Question 8 of 10

Question 8 of 10

Chlorine reacts with cold dilute sodium hydroxide to form

Question 9 of 10

Question 9 of 10

At room temperature, bromine is a

Question 10 of 10

Question 10 of 10

Chlorine gas is

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.