Question

Encircle the odd-one out. Give reasons
your
choice.
1. Bromine, oxygen, nitrogen, hydrogen
2. Sodium, potassium, phosphorus, calcium
3. Copper, magnesium, aluminium, mercury
4. Oxygen, nitrogen, sulphur, graphite
5. Iodine, sulphur, oxygen, phosphorus
S111 besed
uestions​

Answer 1

Answer:

1. bromine

2.phosphorous

3.aluminium

4.graphite

5.oxygen

Explanation:

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Answer 2

Answer:

1. hydrogen, as it behaves like a metal as well as a non metal whereas the others are non metal.

2. phosphorus, as others are metal and phosphorus is a non metal

3. magnesium, as others are transition elements whereas magnesium is alkaline earth metal.

4. graphite, as it is an allotrope of carbon whereas others are natural gases.

5. iodine, as others are non metals whereas iodine is a halogen.