A) \[F{{e}^{2+}}\] ion also gives blood red colour with \[SC{{N}^{-}}\] ion.
B) \[F{{e}^{3+}}\] ion also gives blood red colour with \[SC{{N}^{-}}\] ion.
C) On passing \[{{H}_{2}}S\] into \[N{{a}_{2}}Zn{{O}_{2}}\] solution a white ppt of ZnS is formed.
D) Cupric ion reacts with excess of ammonia solution to give deep blue colour of \[{{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}}\]ion.
Correct Answer: A
Solution :
[a] Only \[F{{e}^{3+}}\] ions give blood red colouration with \[SC{{N}^{-}}\] ions. \[F{{e}^{3+}}+SC{{N}^{-}}\xrightarrow{{}}\underset{\left( dark\text{ }red \right)}{\mathop{{{[Fe(SCN)]}^{2+}}}}\,\]
You need to login to perform this action.
You will be redirected in
3 sec
