1.

A graph of volume of hydrogen released vs time for the reaction between zinc and dil. HCl is given in the figure.On the basis of this mark the correct option-

Answer»

average rate UNTO 40 s is `(V_(3)-V_(2))/(40)`
average rate unto 40 s is `(V_(3)-V_(2))/(40-30)`
average rate unto 40 s is `(V_(3))/(40)`
average rate unto 40 s is `(V_(3)-V_(1))/(40-20)`

Answer :C


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