Assertion (A): Many fuel gases contain hydrogen as a major constituent. Reason ( R): Liquid hydrogen is a very light fuel.

Assertion (A): Many fuel gases contain hydrogen as a major constituent

1.	Assertion (A): Many fuel gases contain hydrogen as a major constituent. Reason ( R): Liquid hydrogen is a very light fuel.
Answer» Both (A) and ( R) are true and ( R) is the correct EXPLANATION for (A). Both (A) and ( R) are true but (R ) is the correct explanation for (A). (A) is true but ( R) is false. (A) is false but (R ) is trues. Solution :Many fuel gases contain HYDROGEN as a major CONSTITUENT because of its HIGH CALORIFIC value.