Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with K 4 [ Fe ( CN ) 6 ] is _____. Cu 2 + , Fe 3 + , Ba 2 + , Ca 2 + , N

Question

Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with $K_{4} [Fe (CN)_{6}]$ is _____. $Cu^{2 +}, Fe^{3 +}, Ba^{2 +}, Ca^{2 +}, NH_{4}^{+}, Mg^{2 +}, Zn^{2 +}$

Answer:

3

Solution:

$Cu^{2 +}, Ca^{2 +} & Zn^{2 +}$ will form precipitate with $K_{4} [Fe (CN)_{6}] . Fe^{3 +}$ forms coloured solution

TestHub · Accepted Answer

Cu 2 + , Ca 2 + & Zn 2 + will form precipitate with K 4 ​ [ Fe ( CN ) 6 ​ ] . Fe 3 + forms coloured solution

Chemistry - Salt Analysis Question with Solution | TestHub

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