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JEE Main202228 Jun 2022Evening ShiftChemistrys Block ElementsActual

Among the following, basic oxide is

Options

  1. ASO 3
  2. BSiO 2
  3. CCaO
  4. DAl 2 O 3

Correct answer

C. CaO

Step-by-step solution

Oxides of metals are generally basic in nature but some are amphoteric in nature. Oxides of non-metals are acidic in nature but some of them are neutral. SO 3 is acidic in nature it reacts with bases. Al 2 O 3 is amphoteric in nature as it reacts with both acids and bases. SiO 2 is acidic in nature. CaO is a basic oxide and it reacts with acids readily.

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