Matter

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1. Compounds obtained from living source are compounds.

2. The symbol of Arsenic is .

3. is used fro cutting and welding purposes.

4. is used in barometers.

5. Non-metals are in nature.

6. Common name of caustic soda is .

7. Hardest non-metal is .

8. is also known as zinc carbonate.

9. r is used in sterilization of drinking water.

10. Baking soda is also known as .