Marble chips or calcium carbonate react with hydrochloric acid as: ` CaCO_3 + 2HCI to CaCl_2 + H_2O + CO_2`
The reaction is carried of twice and following graphs were obtained :

Which of the following statements is incorrect?

Options

A. Reaction is faster in experiment II.
B. Marble chips taken in experiment II are smaller in size than the marble chips taken in experiment I.
C. Same amount of marble chips and hydro chloric acid is used for both the experiments.
D. None of these

Answer

D

Explanation

Graph II is steeper than graph 1 which shows that reaction is faster in experiment II. Both graphs level off at the same value which shows that same amount of marble chips and hydrochloric acid is used for both experiments and marble chips in experiment II must have been of smaller size as the reaction is faster.