Question

TOPIC: ATOMIC STRUCTURE



I. Fill in the blanks:
5x1=5
1. A radical with one atom of sulphur and 3 atoms of oxygen is
2. The formula of aluminium sulphate is
3. The element oxygen with valency 2-belongs to the .........
... Group in the
Modern Periodic Table.
4. An element with variable valency is .......
5. The formula of zinc phosphate is ......

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Answer 1

Explanation:

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Answer 2

Answer:

1. Sulphite

1. Sulphite 2. Al2(SO4)3

1. Sulphite 2. Al2(SO4)33. 16th Group

1. Sulphite 2. Al2(SO4)33. 16th Group4. Hg - Mercury

1. Sulphite 2. Al2(SO4)33. 16th Group4. Hg - Mercury 5. ZnSO4