Question 4 - Assertion Reasoning Questions (MCQ) - Chapter 3 Class 10 - Metals and Non-Metals

Last updated at August 12, 2026 by

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.  

difference between minerals and ores - Teachoo.png

Thus, 

  • The Assertion is True.
  • The reason is also True.

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

So, the correct answer is (b)  

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