Chemistry, asked by arpitalahirisarkar11, 7 months ago

5. The reagent used to confirm
the presence of Cu2+ ions in
solution is

1) NaOH
2) H2SO4

3) NH4OH​

Answers

Answered by keshav2150
6

1) NaOH

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ANSWER-

Put 10 drops of the Cu2+ solution into a test tube. Add enough 6M acetic acid to make it just acidic. Add potassium ferricyanide (K4Fe(CN)6). If Cu2+ is present, then a brick red precipitate will form.

Note-googled it

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