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Assertion (A): Charcoal is better fuel t...

Assertion (A): Charcoal is better fuel than wood.
Reason (R) : Wood is smokeless and leaves no residue.

A

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

B

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

C

Assertion (A) is true but reason (R) is false.

D

Assertion (A) is false but reason (R) is true.

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Knowledge Check

  • A better fuel wood is

    A
    Dicotyledonous hardwood
    B
    Dicotyledonous softwood
    C
    Monocotyledonous softwood
    D
    Resinous gymnnospermous wood
  • Assertion (A) Charcoal is a clean and better source of heat energy. Reason Charcoal is not used as domestic fuel as it is an expensive fuel.

    A
    Both assertion and reason are correct and reason is the correct explanation of assertion.
    B
    Both assertion and reason are correct and reason is not the correct explanation of assertion.
    C
    Assertion is correct but reason is incorrect.
    D
    Assertion is incorrect but reason is correct.
  • Fuel wood is

    A
    Source of petroleum prouducts
    B
    Renewable resource of energy
    C
    Source of biogas
    D
    Source of alcohol
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    Fuel wood is

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