JEE Main & Advanced Chemistry Alkali Metals Question Bank Alkali Metals

  • question_answer 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

    Correct Answer: B

    Solution :

    Ferric alum is \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}.F{{e}_{2}}{{(S{{O}_{4}})}_{3}}.24{{H}_{2}}O\]


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