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NEET Chemistry NEET PYQ-The d-and f-Block Elements

  • question_answer
    The basic character of the transition metal monoxides follows the order:         [AIPMT 2003]

    A) \[TiO>FeO>VO>CrO\]

    B) \[TiO>VO>CrO>FeO\]

    C) \[VO>CrO>TiO>FeO\]

    D) \[CrO>VO>FeO>TiO\]

    Correct Answer: B

    Solution :

    [b] The order of basic character of the transition metal monoxide is \[TiO>VO>CrO>FeO\] because basic character of oxides decrease with increase in atomic number. Hence, oxides of transitional metals in low oxidation state i.e., +2 and +3 are generally basic except \[C{{r}_{2}}{{O}_{3}}\]. (Atomic number \[Ti=22,\text{ }V=23,\text{ }Cr=24,\] \[\text{ }Fe=26\])


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