D-And F-Block Elements Ques 484

Question: A blue colouration is not obtained when

Options:

A) ammonium hydroxide dissolves in copper sulphate.

B) copper sulphate solution reacts with K4[Fe(CN)6].

C) ferric chloride reacts with sod. ferrocyanide.

D) anhydrous CuSO4 is dissolved in water.

Show Answer

Answer:

Correct Answer: B

Solution:

2CuSO4+K4[Fe(CN)6] Cu2[Fe(CN)6]+2K2SO4Chocolateppt.,



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