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Topic Topic: The rate of hydrolysis of lactose Post ReplyNew Question
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Joined: 26 June 2005
Posts: 918
Posted: 27 November 2005 at 11:50am | IP Logged Quote System

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 #1912 created by Tutor12230 on 26 November 2005 at 11:26pm

Correct answer: D    Correct clicks: 45.83%  Wrong clicks: 54.17%
    A.   [10 clicks 10.42%] 
    B.   [11 clicks 11.46%] 
    C.   [31 clicks 32.29%] 
    D.   [44 clicks 45.83%] 
Please discuss this quiz question.
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