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JEE Main202126 Feb 2021Evening ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

Which pair of oxides is acidic in nature?

Options

  1. AB 2 O 3 ,   CaO
  2. BN 2 O ,   BaO
  3. CCaO ,   SiO 2
  4. DB 2 O 3 ,   SiO 2

Correct answer

D. B 2 O 3 ,   SiO 2

Step-by-step solution

An oxide that combines with water to give an acid is termed as an acidic oxide. The oxide that gives a base in water is known as a basic oxide. An amphoteric solution is a substance that can chemically react as either acid or base. B 2 O 3 and SiO 2 both are oxides of non-metal and hence are acidic in nature. CaO , BaO = Basic   Nature B 2 O 3 , SiO 2 = Acidic   Nature N 2 O = Neutral   oxide

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