Question

Which of the following is not a possible source of error in this experiment?

• A. Inaccurate weighing of the $KCl$
• B. Leakage around the rubber stopper
• C. Failure to correct for the water vapor present
• D. Insufficient amount of the catalyst added

Answer 1

The correct option is D Insufficient amount of the catalyst added

Insufficient amount of catalyst cannot be a possible source of error in the experiment. Because catalyst only increases the rate of the reaction by decreasing its activation energy. Catalyst does not take part in the reaction. It remains as it is after the reaction is over.

Hence, an insufficient amount of catalyst can not be a possible source of error.

Option D is the correct answer.