10th Class Science Solved Paper - Science-2015 Set-II

  • question_answer
    In an experiment to show that ?sunlight is necessary for photosynthesis? the leaf is boiled in alcohol for few minutes using a water bath. It is essential because:
    (a) Alcohol is highly volatile.
    (b) Steam from the water bath heats the leaf rapidly.
    (c) Steam from the water dissolves the chlorophyll.
    (d) Alcohol is flammable.

    Answer:

    (c) Steam from the water dissolves the chlorophyll


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