BPSC – Combined Competitive Examination · প্রশ্ন 29
Which of the following slows down the rate of a reaction?
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (D) None of the above
ব্যাখ্যা
Reactions are slowed by inhibitors (negative catalysts or poisons), not by promoters or ordinary catalysts.
- (A) ভুল
Wrong: promoters increase catalyst activity.
- (B) ভুল
Wrong: catalysts generally speed up reactions.
- (C) ভুল
Wrong: catalysts generally speed up reactions.
- (D) সঠিক
Correct: only inhibitors/negative catalysts slow reactions, and none is listed.