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A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI is converted into orange colour solution. The cation of the metal nitrate is a. Hg^2+ b. Bi^3+ c. Pb^2+ d. Cu^+

A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI is converted into orange colour solution. The cation of the metal nitrate is
a. Hg^2+
b. Bi^3+
c. Pb^2+
d. Cu^+

Grade:11

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
6 years ago

(b) Bi(NO base 3) base 3 (aq) + 3KI(aq) ? Bil base 3(s) + 3KNO base 3 (aq) BiI base 3(s) + KI(aq) ?K[Bil base 4]

Orange

The metal ion is Bi^3+

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