MCQ
Among the following basic oxide is .....
  • A
    $SO _{3}$
  • B
    $SiO _{2}$
  • $CaO$
  • D
    $Al _{2} O _{3}$

Answer

Correct option: C.
$CaO$
c
$SO _{3}, SiO _{2}=$ Acidic

$CaO =$ Basic

$Al _{2} O _{3}=$ Amphoteric

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