XI. State which of the following are physical or chemical properties of a sub stance:
1. Magnesium reacts with dilute hydrochloric acid, liberatinghydrogen.
2. Hydrogen sulphide gas has a strong rotten eggodour.
3. Sulphur is a yellow amorphous powder insoluble inwater.
4. Lead chloride reacts with barium sulphate to give white precipitat e of lead
sulphate.
5. Melting point of ice is 0°C.
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Answer:
Physical property: 2, 3, 5
Chemical Property: 1, 4
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