12th Class Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व

  • question_answer 60)
        Which of the following is amphoteric oxide?          (a)                  (b) (c)                      (d)

    Answer:

                        (a)  and  are amphoteric oxide because both react with alkalies as well as acids. Note In lower oxides, the basic character is predominant while in higher oxides, the acidic


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