Hydrogen and its compoundHard
Question
Which of the following is formed when excess of KCN is added to aqueous solution of copper sulphate ?
Options
A.Cu(CN)2
B.K2[Cu(CN)4]
C.K[Cu(CN)2]
D.K3[Cu(CN)4]
Solution
CuSO4 + 2KCN → Cu(CN)2 + K2SO4
Cu(CN)2 + 6KCN → 2K3[Cu(CN)4]
Cu(CN)2 + 6KCN → 2K3[Cu(CN)4]
Create a free account to view solution
View Solution FreeMore Hydrogen and its compound Questions
1-Butyne can be distinguished most easily from 2-butyne by...Oxide of an element A is used in the manufacturing fire clay bricks and this A not react with water but its oxides disso...Which of the following transition will emit maximum energy in hydrogen atom :-...Water soluble compounds are ?...B.H.C. is used as an:...