Question

please tell both answer​

Answer 1

Answer:

Question no b Answer:

1. Conductivity : Metals are good conductor ( Exception : Tungsten)

                        Non metals are bad condutor ( Exception : Graphite)

2. Boiling and Melting point : Metals have high melting and boiling point (Exception : Mercury)

  Non metals have low melting and boiling point ( Exception : Diamond)

3. Hardness : Metals are usually hard (Exception : Sodium)

Non metals are generally soft ( Exception : Sulphur)

Question no c Answer

Properties of plastics :

1. Strength ( Example : Polycarbonate )

2.Weather resistence ( Example : acrylic)

3. Fire resistance (Example : PVC)

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