NCERT solution for class 8 // Science// Chapter 5 - Coal and Petroleum
NCERT solution > class 8 science > Chapter 5 - Coal and Petroleum NCERT solution for class 8 // Science// Chapter 5 - Coal and Petroleum Chapter 5 - Coal and Petroleum Exercise Q1. What are the advantages of using CNG and LPG as fuels. Answer LPG and CNG both produce less quantity of pollution they have following advantages Advantages of using CNG as a fuel CNG burn easily with smokeless flame and it is a clean fuel CNG is used as a fuel for vehicle because it is less polluting It is also used as a fuel in the thermal power station for generating electricity It can be used in home and factories for directly burning process Advantages of LPG as a fuel LPG does not leave behind any solid residue after burning It does not produce any poisonous gases during burning It has high calorific value . It create a smokeless flame and it is clean fuel. Q2. Name the petroleum product used for surfacing of roads ...