10th Class Science Solved Paper - Science-2016 Outside Delhi Set-I

  • question_answer
    For preparing soap in the laboratory we require an oil and a base. Which of the following combinations of an oil and a base would be best suited for the preparation of soap?
    (a) Castor oil and calcium hydroxide
    (b) Turpentine oil and sodium hydroxide
    (c) Castor oil and sodium hydroxide
    (d) Mustard oil and calcium hydroxide

    Answer:

    (c) Castor oil and sodium hydroxide


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