Question

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

• A. Average rate upto $40$ second is $\frac{V_{3}-V_{2}}{40}$
• B. Average rate upto $40$ seconds is $\frac{V_{3}-V_{2}}{40-30}$
• C. Average rate upto $40$ seconds is $\frac{V_{3}}{40}$
• D. Average rate upto $40$ seconds is $\frac{V_{3}-V_{1}}{40-20}$

Answer 1

Answer: (C)

Average rate upto 40 sec=$\frac{V_{3}-V_{0}}{40-0}=\frac{V_{3}}{40}$