NEET Chemistry Chemical Kinetics Questions Solved

Consider the reaction:

Cl2(aq) + H2S(aq) → S(s) +2H+(aq) +2Cl-(aq)

The rate equation for this reaction is rate = k[Cl2][H2S] Which of these mechanisms is/are consistent with this rate equation?

A. Cl+ H2S → H+ Cl- +Cl+ + HS- (slow)

cl+ + HS- → H+ +Cl- + S (fast)

B. H2 H+ + HS- (fast equilibrium)

Cl2 + HS- → 2Cl- + H+ + S (slow)

(a) A only

(b) B only

(c) Both A and B

(d) Neither A nor B

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