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) Cl2 + H2S → H+ + Cl– + Cl+ + HS– (slow)Cl+ + HS– → H+ + Cl– + S (fast)(b) H2S ⇌ H+ + HS– (fast equilibrium)Cl2 + HS– → 2Cl

For Competitive Exams

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) Cl₂ + H₂S → H⁺ + Cl^– + Cl⁺ + HS^– (slow)

Cl⁺ + HS^– → H⁺ + Cl^– + S (fast)

(b) H₂S ⇌ H⁺ + HS^– (fast equilibrium)

Cl₂ + HS^– → 2Cl^– + H⁺ + S (slow)

(a) only

(b) only

Both (a) and (b)

Neither (a) nor (b)

Next Question

Half life period of a first order reaction is 1386 seconds. The specific rate constant of the reaction is

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