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Chemistry
 Online Tutoring : Quiz : Chemistry
How long will it take for 50% of the lactose to be hydrolysed? Check your score
  Play           Question 51 of 161 in this category.    

The rate of hydrolysis of lactose to glucose and galactose is a first order reaction. If 20% of a sample of lactose is hydrolysed in 20 seconds, how long will it take for 50% of the lactose to be hydrolysed?
 
A.
30 seconds
B.
31 seconds
C.
40 seconds
D.
62 seconds

 
  * Quiz question created by Tutor12230 on 26 November 2005 at 11:26pm

 
 
 
 
 
 

 




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