Question

E.
Find the odd one out. Give reason for your answer.
1. Methane, Quicklime, Bromine, Water
2. Oxygen, Sulphur, Chlorine, Nitrogen
3. Ammonium, Hydroxide, Phosphate, Bicarbonate
4. Silicon, Lithium, Hydrogen, Fluorine.

Class 7.
ICSE
Chemistry​

Answer 1

1. water. others are minarels and chemical s
2. sulphur . others are gases
3. hydroxide. others are used for agriculture
4. flurine. other are non poisonous.

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