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STD 11 - 3. Classification of elements and periodicity in properties — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 3. Classification of elements and periodicity in properties4 Marks
MCQ
An element $X$ which occurs in the first short period has an outer electronic structure ${s^2}{p^1}$. What are the formula and acid-base character of its oxides
  • A
    $X{O_3},$ basic
  • B
    ${X_2}{O_3},$ basic
  • ✓
    ${X_2}{O_3},$ amphoteric
  • D
    $X{O_2},$ acidic
✓

Answer

Correct option: C.
${X_2}{O_3},$ amphoteric
c
(c) ${B_2}{O_3}$,$A{l_2}{O_3}$are amphoteric oxides.

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