Choose the correct option and fill in the blanks:
Fuels such as (methane/petrol) and _ (diesel/LPG) are preferred, as they don't produce smoke.

Methane

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LPG

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Solution

Combustible substances like methane(CH₄) and LPG(Liquified Petroleum Gas) on combustion, produce smokeless fire with no residue, thereby keeping the environment pollution-free.
Therefore, fuels such as methane and LPG are preferred, as they don't produce smoke.

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(a) LPG is afuel but biogas is not a fuel.

Question 6
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Choose the correct option and fill in the blanks:Fuels such as ________ (methane/petrol) and _________ (diesel/LPG) are preferred, as they don't produce smoke.

Combustible substances like methane(CH4) and LPG(Liquified Petroleum Gas) on combustion, produce smokeless fire with no residue, thereby keeping the environment pollution-free.Therefore, fuels such as methane and LPG are preferred, as they don't produce smoke.

Choose the correct option and fill in the blanks:
Fuels such as (methane/petrol) and _ (diesel/LPG) are preferred, as they don't produce smoke.

Combustible substances like methane(CH₄) and LPG(Liquified Petroleum Gas) on combustion, produce smokeless fire with no residue, thereby keeping the environment pollution-free.
Therefore, fuels such as methane and LPG are preferred, as they don't produce smoke.