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Question

Which of the following statement is/are wrong in case of sodium chloride NaCl?


A

Valency of chlorine is +1

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B

Valency of chlorine is 1

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C

Valency of sodium is +1

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D

Valency of sodium is 1

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Solution

The correct options are
A

Valency of chlorine is +1


D

Valency of sodium is 1


Sodium is a metal so it donates the electron to become stable while chlorine is a non-metal so it accepts the electron to become stable.

Sodium atom donates one electron to the chlorine atom from its valence shell. Therefore, the valency of sodium is +1. The chlorine atom accepts one electron from the sodium atom into its valence shell (in order to complete its octet). Therefore, the valency of chlorine is 1


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