Question

Answer all..... Plsss

Answer 1

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1) Graphite

2) Metals have been arranged in the left hand side whereas the non metals are arranged in the right hand side.

3) Metals generally form basic oxides but a few metals like Aluminium and zinc form amphoteric oxides(they react with both acids and bases).

4) Metal+water----->Metal Hydroxide+Hydrogen

Metal+Oxygen----->Metal oxide

5)An alloy is a homogeneous mixture of two metals or a metal with a non metal.

Examples: Stainless steel, Brass, Bronze etc.

6) Oxygen, when combined with hydrogen forms oxyhydra flames that are used for cutting and welding.

7) Two forms of carbon: Graphite and diamond

8) Nitrogen

9) Mg, Cl, F, Ne, S, Zn, Ca

10) Sulphur