When conc. sulphuric acid is added slowly to a solution of ferrous sulphate containing nitrate ion, a brown colour ring is formed. The composition of the ring is [CPMT 1989]

\[[Fe{{({{H}_{2}}O)}_{5}}NO]S{{O}_{4}}\]

\[Fe[{{({{H}_{2}}O)}_{5}}]{{(N{{O}_{3}})}_{2}}\]

When conc. sulphuric acid is added slowly to a solution of ferrous sul

1.	When conc. sulphuric acid is added slowly to a solution of ferrous sulphate containing nitrate ion, a brown colour ring is formed. The composition of the ring is [CPMT 1989]
A.	\[[Fe{{({{H}_{2}}O)}_{5}}NO]S{{O}_{4}}\]
B.	\[FeS{{O}_{4}}.N{{O}_{2}}\]
C.	\[Fe[{{({{H}_{2}}O)}_{5}}]{{(N{{O}_{3}})}_{2}}\]
D.	None of these
Answer» B. \[FeS{{O}_{4}}.N{{O}_{2}}\]

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When conc. sulphuric acid is added slowly to a solution of ferrous sulphate containing nitrate ion, a brown colour ring is formed. The composition of the ring is [CPMT 1989]

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