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  5. Organic Chemistry: Some Basic Principles & Techniques / कार्बनिक रसायन : कुछ मूलभूत सिद्धांत एवं तकन

Railways General Science & Technology Organic Chemistry: Some Basic Principles & Techniques / कार्बनिक रसायन : कुछ मूलभूत सिद्धांत एवं तकन Sample Paper General Oragnic Chemistry Sample Test Paper-25

  • question_answer
    To prevent from knocking the substance employed in the car engine is

    A)  Ethyl alcohol

    B)  butane

    C)  tetraethyl lead

    D)         white petrol

    Correct Answer: C

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