Ferric alum has the composition \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}.F{{e} – McqOptions

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1.	Ferric alum has the composition \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}.F{{e}_{2}}{{(S{{O}_{4}})}_{3}}.x{{H}_{2}}O\] [Orissa JEE 2002]
A.	7
B.	24
C.	6
D.	15
Answer» C. 6

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