Q.

Assertion: From metals school bells are made.
Reason: Metals are sonorous.

1 Both assertion and reason are correct and reason is the correct explanation of assertion.  
2 Both assertion and reason are correct, but reason is not the correct explanation of assertion.  
3 Assertion is true, but reason is false.  
4 Assertion is false, but reason is true  

Ans.

(1)

School bells are made up of metals because metals are sonorous, i.e., when bells are hit, they vibrate and produce sound. Thus, both assertion and reason are correct and reason is the correct explanation of the assertion.