Question

As per the following consecutive reactions the r.d.s. is

(P) $\xrightarrow { \mathrm { k } = 2 \times 10 ^ { - 5 } \mathrm {~s} ^ { - 1 } }$ (Q) $\xrightarrow { \mathrm { k } = 8 \times 10 ^ { - 6 } \mathrm {~s} ^ { - 1 } }$

(R) $\xrightarrow { \mathrm { k } = 3 \times 10 ^ { - 3 } \mathrm {~s} ^ { - 1 } }$ (S)

• A. P ¾® Q
• B. Q ¾® R
• C. R ¾® S
• D. P ¾® S

Answer 1

Answer: (B)

Q ¾® R

Answer 2

Slowest step is the r.d.s.