question_answer

0.001 mol of \[Co{{(N{{H}_{3}})}_{5}}(NO)S{{O}_{4}}\] was passed through a cation exchanger and the acid coming out of it required 20 mL of 0.1 M NaOH for neutralisation. Hence, the complex is

A)  \[[Co{{(N{{H}_{3}})}_{5}}(S{{O}_{4}})]N{{O}_{3}}\]

B)  \[[Co{{(N{{H}_{3}})}_{5}}(N{{O}_{3}})]S{{O}_{4}}\]

C)  \[[Co{{(N{{H}_{3}})}_{5}}]N{{O}_{3}}S{{O}_{4}}\]

D)  None of these.