Question

Circle the odd one out and give reasons for others:
i. Potassium, Sodium, Polonium, Gold
ii. Zinc, Iodine, Iron, Lead
iii. Neon, Radon, Argon, Chlorine
iv. Ammonium Chloride + Sodium chloride, Iron + Sulphur, Sulphur +
Charcoal, Calcium carbonate + water, Potassium nitrate + Potassium
chlorate

Answer 1

Answer:

1. sodium

2.zinc

3. chlorine

Answer 2

Answer:

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