Which one of the following is the correct sequence in increasing order of molecular weights of the hydrocarbons? [IAS Prelim]

Propane, butane, ethane and methane

Methane, ethane, propane and butane

Butane, ethane, propane and methane

Butane, propane, ethane and methane

Which one of the following is the correct sequence in incre

1.	Which one of the following is the correct sequence in increasing order of molecular weights of the hydrocarbons? [IAS Prelim]
A.	Methane, ethane, propane and butane
B.	Propane, butane, ethane and methane
C.	Butane, ethane, propane and methane
D.	Butane, propane, ethane and methane
Answer» B. Propane, butane, ethane and methane