What is the correct formula for lithium tetrachlorocuprate(II)? a. Li3[CuCl4] b. Li2[CuCl4] c. Li[CuCl4] d. Li4[CuCl4]...

What is the correct formula for lithium tetrachlorocuprate(II)?

a. Li₃[CuCl₄]

b. Li₂[CuCl₄]

c. Li[CuCl₄]

d. Li₄[CuCl₄]

e. Li₂[CuCl₆]

Expert Solution

Ans. In nomenclature of complex compounds, cuprate means anionic copper complex, i.e. a Cu-complex with net negative charge on it.

Tetrachlorocuprate means a cuprate with four Cl-atoms.

So,

Tetrachlorocuprate = [CuCl₄]^2-

Cu is in oxidation state of +2, Cl has oxidation number of -1. So, the net charge on complex is -2 (for Cu(II)).

# To make the overall complex neutral with Li, there must be two Li-atoms (Li has oxidation number of +1).

So,

Overall complex is – Li₂[CuCl₄]

Therefore: lithium tetrachlorocuprate = Li₂[CuCl₄]

Correct option is- b. Li₂[CuCl₄]

queen_honey_blossom answered 2 years ago

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