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Question

Which of the following represent the compound CuCl2?



A
Copper(I) chloride
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B
Copper(II) chloride
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C
Cupric chloride
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D
Cuprous chloride
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Solution

The correct options are
B Copper(II) chloride
C Cupric chloride
In CuCl2 the valency of copper is two and that of chlorine is one.
Copper shows variable valencies of one and two.
When an atom shows two valencies, its name ends with-'-ous' for lower valency, with '-ic' for higher one
Thus, copper exhibiting lower valency is known as cuprous and with higher valency is known as cupric. 
Hence, the name of the compound CuCl2 is copper(II) chloride or cupric chloride.

Chemistry

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