Q.

For a zero order reaction, initial concentration of the reactant is 2 M and after 60 minutes the concentration left is 0.5 M.  Rate constant  of the reaction is

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a

0.05 M-1.min-1

b

0.025 M.min-1

c

0.05 M.min-1

d

0.033 M-1.min-1

answer is C.

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Detailed Solution

Given, a=2 M;      a-x= 0.5 M     Thus x=1.5 M              x=Kt......for zero order              K=1.5 M60 minutes=0.025 M. min-1

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