Question

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Answer 1

Answer:

The metals are sodium and potassium

.they wiill rect with water vigrously

.they will catch fire.

.hydrogen gas is evolved

by carrying a candle near it ,we can identify the gas.It will come out with pop sound.

(a) covalent compounds are poor conductor of electricity because they do not have free ions to conduct electricity because they are formed by mutual sharing of electrons.

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Answer 2

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