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Elements A, B and C belong to the same period in the long form of the periodic table. The nature of the oxides of A, B and C is amphoteric basic and acidic respectively. The correct order of the atomic numbers of these elements is

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B > A > C

C > B > A

C > A > B

A > B > C

answer is C.

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Detailed Solution

A B C

Amphoteric Basic Acidic

On moving left to right along the same period, acidic nature of oxide increases. Basically, basic nature of oxides changes from amphoteric to acidic on moving along a period.
B < A< C in atomic number.

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