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Question

To prove that plants required sunlight to produce oxygen, Ingenhousz repeated the experiment of

A
Priestly
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B
van Niel
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C
Engelmann
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D
von Sachs
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Solution

The correct option is A Priestly
Ingenhousz repeated Joseph Priestly's bell jar experiments and he discovered that the substance released by the plant (now we know it is oxygen) to keep the candle burning is only released when the plants are exposed to sunlight.

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