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  3. 10th Class
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10th Class Science Sample Paper Science Olympiad Model Test Paper-20

  • question_answer
    Which one of the following statements is incorrect?

    A) Soaps are obtained from vegetable oils and animal fats.

    B) Synthetic detergents are obtained from coal tar and petroleum.

    C) Soaps are biodegradable.

    D)  Synthetic detergents are biodegradable.

    E)  None of these

    Correct Answer: D

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