2. Questions Bank
  3. NEET
  4. Chemistry
  5. The d-and f-Block Elements / d तथा f ब्लॉक के तत्व

NEET Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Self Evaluation Test - The d-and f-Block Elements

  • question_answer
    A compound of iron exists as a dimer in vapour state. It is hygroscopic in nature and dissolves in water giving brown acidic solution. The compound is

    A) \[F{{e}_{3}}{{O}_{4}}\]                     

    B) \[FeS{{O}_{4}}\]

    C) \[FeC{{l}_{3}}\]                       

    D) \[Fe{{O}_{2}}\]

    Correct Answer: C

    Solution :

    [c] The solution is acidic due to formation of \[HCl\] and brown due to \[Fe{{\left( OH \right)}_{3}}.\] \[FeC{{l}_{3}}+3{{H}_{2}}O\to \underset{Brown}{\mathop{Fe{{(OH)}_{3}}}}\,+3HCl\]


You need to login to perform this action.
You will be redirected in 3 sec spinner