| I. KCN |
| II. \[Fe{{\left( CN \right)}_{2}}\] |
| III: Mixture of KCN, \[Fe{{\left( CN \right)}_{2}}\] in molar ratio 4:1 pick up the correct statement |
A) Both I and III will give test for \[C{{N}^{-}}\]
B) Both II and III will give test for \[F{{e}^{+2}}\]
C) Solution III will neither give test for GST nor \[F{{e}^{+2}}\] ions
D) Electrical conductivity of all solution will be same
Correct Answer: C
Solution :
Test tube m contains\[\,{{K}_{4}}\left[ Fe{{\left( CN \right)}_{6}} \right]\]. Which does not give test for \[F{{e}^{+2}}\] and \[C{{N}^{-}}\] ions.
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