Question
Chemistry Question on Alcohols, Phenols and Ethers
Which substance is produced when alcohol is added with petrol and used as a fuel?
A
(A) Only oxygen
B
(B) Only carbon-dioxide
C
(C) Only water
D
(D) Carbon-dioxide and water both
Answer
(D) Carbon-dioxide and water both
Explanation
Solution
Explanation:
Carbon-dioxide and water both are produced when alcohol is added to petrol and used as a fuel.For example, Ethanol is used as an additive in gasoline (Petrol) by some countries as its impact on the environment is much lower than gasoline or diesel.When ethanol combusts, it releases, mainly carbon dioxide and water.C2H5OH +3O2 → 2CO2 + 3H2O + heatHence, the correct option is (D).