2A + 3B + C ⟶ D + E

The rate constant for this reaction is 0.25, and the reaction is second order in A and is first order in B and C.

Which option correctly gives the rate of the reaction if [A] is 0.4 M, [B] is 0.1 M and [C] is 0.2 M?

3 answers

I don't see any options. But write the rate constant expression and compare it with the options. Post your work if you get stuck.
2.0 x 10^-3 is wrong
I got it, 8.0 × 10^-4