Get premium membership and access questions with answers, video lessons as well as revision papers.

A form 1 student was supplied with a colourless liquid suspected to be water. (i)Describe one chemical test that could be carried out to show that...

      

A form 1 student was supplied with a colourless liquid suspected to be water.
(i)Describe one chemical test that could be carried out to show that the liquid was water.
(ii)How could it have been shown that the liquid was pure water?

  

Answers


Seline
(i)Add the colourless liquid to:
-Anhydrous copper(II) sulphate which turns colour from white to blue.
-Anhydrous cobalt(II)chloride which turns colour from blue to pink.

(ii)Determine its boiling point which is 100°C or freezing point which is 0°C.
Belan answered the question on February 13, 2019 at 12:16


Next: The use of materials of lead in roofing and in water pipes is being discouraged. State (i)Two reasons why these materials have been used in the past. (ii)One...
Previous: Define the term 'half life' as used in radioactivity.

View More Chemistry Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions