question_answer

\[C{{o}^{2+}}\] and \[N{{i}^{2+}}\] can be analysed in presence of each other by

A) \[NaHC{{O}_{3}}+B{{r}_{2}}\] water   

B) \[KCN+{{H}_{2}}S\]       

C)    \[N{{a}_{2}}C{{O}_{3}}+C{{l}_{2}}\] water   

D) \[KCNS+{{H}_{2}}S\]

Correct Answer: A

Solution :

[a] Palit?s test for the analysis of \[C{{o}^{+2}}\] and \[N{{i}^{+2}}\] in presence of each other.