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Assertion-Reason: Burning of Natural Gas

Central Board of Secondary Education 2026 Slot 1 · CHEM · Medium · Chemical Reactions and Equations · 1 mark

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Assertion (A): Burning of natural gas is an endothermic reaction. Reason (R): Methane gas reacts with oxygen to produce CO2CO_2 and H2OH_2O.

Choose the correct option: (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.

  1. A.

    Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

  2. B.

    Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).

  3. C.

    Assertion (A) is true, but Reason (R) is false.

  4. D.

    Assertion (A) is false, but Reason (R) is true.

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