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B
False
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Solution
The correct option is A True
Understanding the concept:
Those substances that give energy on heating are combustible.
For example, petrol, wood, diesel, etc are some examples of combustible substances, and the process is called combustion.
Explanation of CNG and LPG:
The full form of LPG is liquified petroleum gas and CNG is a compressed natural gas.
For heating and cooking, some homes use (CNG), which is gas held at high pressure.
For small vehicles that require high fuel efficiency, CNG is indeed a cost-effective and ecologically beneficial transportation fuel.
LPG (Liquid Petroleum Gas) is a flammable gas that is extensively used in domestic heating, cooking, and hot water systems, as well as in automobiles, agriculture, and manufacturing.
Therefore both CNG and LPG produce energy by burning.
Thus LPG and CNG are combustible substances is the correct statement.