Railways Sample Paper RRB (Group D) Sample Test Paper-12

  • question_answer
    An antiknock for petrol is

    A)  Sodium hydroxide

    B)  ethanol

    C)  Sodium benzoate

    D)  lead tetraethyl

    Correct Answer: D

    Solution :

    [d] Tetraethyl lead is an organ lead compound used as I petro-fuel additive that allowed engine compression to be raised substantially. This in turn increase vehicle performance.


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