Question 16
Question 16 of 40
Question image for Q16
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
7. Acids, bases and salts
7.2. Oxides

Describe amphoteric oxides as oxides that react with acids and with bases to produce a salt and water

9. Metals
9.1. Properties of metals

Describe the general chemical properties of metals, limited to their reactions with: (a) dilute acids (b) cold water and steam (c) oxygen

9. Metals
9.6. Extraction of metals

Describe the ease in obtaining metals from their ores, related to the position of the metal in the reactivity series