Question 15
Question 15 of 40
Question image for Q15
Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
1. States of matter
1.1. Solids, liquids and gases

Describe changes of state in terms of melting, boiling, evaporating, freezing and condensing

6. Chemical reactions
6.1. Physical and chemical changes

Identify physical and chemical changes, and describe the differences between them

10. Chemistry of the envi...
10.1. Water

Describe how to test for the purity of water using melting point and boiling point