Please tell me the correctanswer showing all explanation to earn 10 ptz and 5 stars)thanks?

Question

Which of the following could be used as the units for rate of a reaction?

1) mL/s

2) g/min

3) M/min

a)1 only

b)1 and 2 only

c)2 and 3 only

d)1,2 and 3.

Answer 1

rate is usually a change in Molarity per unit of time

but I can't see any reason why a person couldn't measure grams or  even ml produced or dis-appearing  per time

I feel your answer is d)1,2 and 3.