When copper (ll) chloride solution is treated with excess aqueous ammonia, a deep blue solution results This is due to the presence of
-
A.
(CuNH4)3+ ions -
B.
(CuCI4)2-ions -
C.
[Cu(OH)4]2- ions -
D.
Cu(H2-O)42+ IONS -
E.
[cU(NH3)4] ions
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