Question

2.Give reasons.
1. Tungsten is used in electric bulbs.
2. Impure diamond is used to cut glasses.
3. Gold is mixed with copper and nickel.

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Answer 1

Answer:

Impure diamond is used to cut glass because it is the hardest substance and can easily exert force required for cutting. 2. Pure gold is a very soft metal. It cannot be molded into ornaments so it is mixed with copper and nickel so that it becomes harder and bit cheaper also.

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