Assertion: Decomposition of vegetable matter into compost is an endothermic reaction. 

Reason: Decomposition reaction involves breakdown of a single reactant into simpler products. 

 

Answer - 

We know that

  • Exothermic reaction releases energy after the reaction
  • Endothermic reaction aborbs energy to undergo the reaction

 

Now,

  • In Decomposition of vegetable matter, energy is released . So, it is an Exothermic reaction.
  • Also, in Decomposition reaction, single reactant breaks down into simpler products.

Decomposition Reaction-01.jpg

Thus,

  • Assertion is false
  • Reasoning is true

 

So, the correct answer is (d)  

 

  1. Class 10
  2. Solutions to CBSE Sample Paper - Science Class 10
Class 10
Solutions to CBSE Sample Paper - Science Class 10
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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