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Electrical wires have a coating of an in...

 Electrical wires have a coating of an insulating material. The material, generally used is

A

Lead

B

Graphite

C

PVC

D

All can be used.

Text Solution

Verified by Experts

The correct Answer is:
C
PVC (Poly Vinyl Chloride) coating are generally used for insulating electrical wires.
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DINESH PUBLICATION-METALS AND NON-METALS-MCQ
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  2. Generally, non-metals are not conductors of electricity. Which of th...

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  3. Electrical wires have a coating of an insulating material. The materia...

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  4. Which of the following non-metals is a liquid?

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  5. Which of the following can undergo a chemical reaction ?

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  6. Which one of the following Figures correctly describes the process of ...

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  7. Iqbal treated a lustrous, divalent element M with sodium hydroxide. He...

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  8. During extraction of metals, electrolytic refining is used to obtain p...

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  9. Why should the metal sulphides and carbonates be converted to metal ox...

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  10. Generally, when metals are treated with mineral acids, hydrogen gas is...

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  11. Compound X and aluminium are used to join railway tracks. (a) Idemjfy ...

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  12. When a metal 'X' is treated with cold water, it gives a basic salt 'Y'...

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  13. A non-metal X exists in two different forms Y and Z. Y is hardest natu...

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  14. The following reaction takes place when aluminium powder is heated wit...

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  15. What are the constituents of solder alloy? Which property of soldev ma...

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  16. A metal 'M', which is used in thermite process, when heated with oxyge...

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  17. A metal that exists as a liquid at room temperature is obtained by hea...

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  18. Give the formulae of the stable binary compounds that would be formed ...

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  19. What happens when (a) ZnCO(3) is heated in the absence of oxygen?  ...

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  20. A non-metal A is an important constituent of our food and forms two ox...

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