Question

I. Encircle the odd-one out. Give reason
your choice.
1. Bromine, oxygen, nitrogen, hydrogen
2. Sodium, potassium, phosphorus, calcium
3. Copper, magnesium, aluminium, mercun
4. Oxygen, nitrogen, sulphur, graphite
5. Iodine, sulphur, oxygen, phosphorus​

Answer 1

Answer:

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Answer 2

Answer:

1. bromine

2.phosphorus

3.copper

4.graphite

5.iodine