Q20 of 5070_w24_qp_11

Question 20

Question 20 of 40

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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 bases to produce a salt and water

7. Acids, bases and salts

7.1. The characteristic properties...

State that bases are oxides or hydroxides of metals and that alkalis are soluble bases