Question

3 Name the following:
1. The silvery residue obtained on heating mercury [I] oxide.
2. The gas evolved when a dilute acid is added to chalk [limestone).
3. Two non-metals which react explosively when brought in close contact.
4. Two gases which react under pressure in presence of a catalyst at eleva
temperatures to give a gaseous product.
5. A catalyst which increases the rate of a chemical reaction
cons for the following:​

Answer 1

1. Mercury
2. Carbon dioxide
3. Iodine phosphorus
4. Nitrogen and hydrogen
5. Manganese dioxide

Answer 2

Answer:

1. Mercury (Hg)

2. Carbon dioxide gas

3. Iodine and sulphur

4. Nitrogen and hydrogen.

5. Magnesium Oxide

Explanation:

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