S5 Revision Test 6

Click on the correct answer


1	The colour which best describes pH paper when dipped in limewater is......
		White
		Blue
		Green
		Red
		Yellow

2	The colour which best describes wet pH paper held in chlorine gas is......
		White
		Blue
		Green
		Red
		Yellow

3	The colour which best describes bromine vapour is.......
		White
		Blue
		Green
		Red
		Yellow

4	The colour which best describes potassium chromate solution is......
		White
		Blue
		Green
		Red
		Yellow

5	The colour which best describes chromium(III) sulphate solution is......
		White
		Blue
		Green
		Red
		Yellow

6	The colour which best describes iron(II) sulphate solution is......
		White
		Blue
		Green
		Red
		Yellow

7	The colour which best describes a Bunsen burner flame with air-hole completely closed is......
		White
		Blue
		Green
		Red
		Yellow

8	The number of electrons in a calcium ion is......
		10
		12
		14
		16
		18

9	The number of electrons in a molecule of oxygen is......
		10
		12
		14
		16
		18

10	The number of electrons in a molecule of fluorine is......
		10
		12
		14
		16
		18

11	The number of electrons in a molecule of carbon monoxide is......
		10
		12
		14
		16
		18

12	The number of electrons in a molecule of nitrogen is......
		10
		12
		14
		16
		18