Question 5
Question 5 of 40
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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
2. Atoms, elements and co...
2.4. Ion and ionic bonds

Describe and explain in terms of structure and bonding the properties of ionic compounds: (a) high melting points and boiling points (b) good electrical conductivity when aqueous or molten and poor when solid

2. Atoms, elements and co...
2.5. Simple molecules and covalent...

Describe and explain in terms of structure and bonding the properties of simple molecular compounds: (a) low melting points and boiling points in terms of weak intermolecular forces (specific types of intermolecular forces are not required) (b) poor electrical conductivity

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

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