Question

Two hydrocarbons such as octane and decane differ in molecular mass by ______ units. 

विकल्प

• 14

• 28

• 13

• 42

Answer 1

Two hydrocarbons such as octane and decane differ in molecular mass by 28 units. 

Explanation:

Molecular mass of octane \[\ce{(C8H18)}\] = 114

Molecular mass of decane \[\ce{(C10H22)}\]  = 142

Difference between octane and decane = (142 − 114)

= 28