Consider the reaction: Cl _ 2 ( aq )+ H _ 2 5( aq ) 5(5)+2 H ^ + ( aq )+2 Cl ^ - ( aq )…
Chemistry · JEE Main · NTA Exams — Chemical Kinetics
Consider the reaction:
\(\mathrm{Cl}_{2}(\mathrm{aq})+\mathrm{H}_{2} 5(\mathrm{aq}) \longrightarrow 5(5)+2 \mathrm{H}^{+}(\mathrm{aq})+2 \mathrm{Cl}^{-}(\mathrm{aq})\)
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)
- (B) only
- Both (A) and (b)
- Neither (A) nor (B)
- (A) only
Answer
(B) Both (A) and (b)
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