Question

Ethane burning in oxygen to give carbon dioxide and steam. The volume ratio of reactants to products is ______________.

• A. 2 : 6 : 4 : 3
• B. 2 : 7 : 2 : 5
• C. 3 : 4 : 4 : 6
• D. 2 : 7 : 4 : 6

Answer 1

Answer: (D)

2 : 7 : 4 : 6

The equation for the combustion reaction of ethane can be written as :
$2C_2{H}_6+7O_2\to 4C{O}_2+6H_{2}O$
Therefore the volume ratio of reactants and products $=2:7:4:6$