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  5. The p-Block Elements-I / p-ब्लॉक के कुछ तत्व-I

JEE Main & Advanced Chemistry The p-Block Elements-I / p-ब्लॉक के कुछ तत्व-I Question Bank Carbon Family

  • question_answer
    In IIIA group, Tl (thalium) shows +1 oxidation state while other members show +3 oxidation state. Why  [JEE Orissa 2004]

    A) Presence of lone pair of electron in Tl

    B) Inert pair effect

    C) Large ionic radius of \[Tl\] ion

    D) None of these

    Correct Answer: B

    Solution :

    Inert pair effect become significant for the 6th and 7th period of p-block element. 


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