Assertion (A): A mineral is called ore, when metal  is extracted from it conveniently and economically.  

Reason (R): All ores are minerals but all minerals are not ores.  

Answer

 

Minerals are naturally occurring  chemical substances in the earth’s crust obtained  by mining. 

A mineral is called an ore only when the metal can be extracted from it conveniently  and economically. 

Thus, all ores are minerals but all minerals are not ores.  

 

Thus, 

  • The Assertion is True.
  • Reason is also True.

And the Reason is NOT the correct explanation for the assertion.  

So, the correct answer is (b)  

  1. Class 10
  2. Chapter 3 Class 10 - Metals and Non-Metals (Term 1)
Class 10
Chapter 3 Class 10 - Metals and Non-Metals (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
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