The table given below shows the reaction of a few elements with acids and bases to evolve Hydrogen gas. 

Q 35 - Elements with acids and bases to evolve Hydrogen gas - Teachoo.jpg

Which of these elements form amphoteric oxides? 

(A) A and D 

(B) B and D 

(C) A and C 

(D) B and D 

 

Answer - 

Metal oxides which react with both acids as well as bases to produce salts and water are known as amphoteric oxides.

Amphoteric oxide reaction with Acid  and Base-01.jpg

From our table

  • Only B and D reacts with both Acids and Base

. So, the correct answer is (b)    

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo