A) will give the test of\[C{{u}^{2+}}\]ions
B) will give the test of \[N{{H}_{3}}\]
C) will give the test of\[SO_{4}^{2-}\]ions
D) will not give the tests of any of the above species
Correct Answer: C
Solution :
\[|Cu(N{{H}_{3}})|S{{O}_{4}}\]ionises in solution to give simple\[SO_{4}^{2-}\]ions which can be identified by adding\[BaC{{l}_{2}}\]solution.
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