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Mitaali, a class 10 student wanted to st...

Mitaali, a class 10 student wanted to study the speed of reactions of different acids with zinc metal. For this, she conducted the following experiments using zinc metal in excess.

She measured the volume of `H_2` gas produced at regular time intervals and summarised her results in a graphical form.
Which of the following graphs best represents the results obtained in experiments I, II and III?

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The correct Answer is:
B
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