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8th Class General Knowledge Miscellaneous / विविध Question Bank Science and Technology

  • question_answer
    Gunpowder is the earliest known chemical explosive. It was invented in the 9th century in China. Gunpowder is a mixture of

    A)  Sulphur, charcoal and common sail

    B)  Saltpeter, sugar and sodium hydroxide

    C)  Sulphur, charcoal and potassium nitrate

    D)  Potassium nitrate, sugar and table salt.

    Correct Answer: C

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