Solutions - CBSE Class 10 Sample Paper for 2022 Boards - Science [MCQ]

Class 10
Solutions to CBSE Sample Paper - Science Class 10

Which of the given options correctly represents the Parent acid and base of Calcium Carbonate? 

Q8 - Parent acid and base of Calcium Carbonate - Teachoo.jpg

Answer - 

 

Calcium carbonate is CaCO 3  

So, 

  • Acid should have carbonate i.e. CO 3  
  • And base should have Calcium i.e. Ca

The reaction looks like

Reaction to form Calcium Carbonate - Teachoo-01.jpg

 

Since only option (b) satisfies both conditions

So, the correct answer is (b)  

 

 

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo