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JEE Main20209 Jan 2020Morning ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

The acidic, basic and amphoteric oxides, respectively, are

Options

  1. AN a 2 O ,   S O 3 ,   A l 2 O 3
  2. BC l 2 O ,   C a O ,   P 4 O 10
  3. CN 2 O 3 ,   L i 2 O ,   A l 2 O 3
  4. DM g O ,   C l 2 O ,   A l 2 O 3

Correct answer

C. N 2 O 3 ,   L i 2 O ,   A l 2 O 3

Step-by-step solution

Non-metal oxides are acidic in nature as they produce acidic solution by reacting with water, so here Cl 2 O ,   P 4 O 10 ,   SO 3 are acidic oxides which produce HOCl ,   H 3 PO 4 ,   H 2 SO 4 respectively, with water. Alkali metal and alkaline earth metal oxides are basic in nature, as they produce metal hydroxide solution with water and metal hydroxides are basic in nature. Here, Na 2 O ,   CaO ,   Li 2 O ,   MgO are basic hydroxides which form NaOH ,   Ca OH 2 ,   Li

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