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Chemistry Question on Chemical Kinetics

The rate constant of a zero order reaction is 0.2 mol dm−3 hr−10.2\, mol\, dm^{-3}\, hr^{-1}. If the concentration of the reactant after 30 min is 0.05 mol dm−3.0.05\, mol\, dm^{-3.} Then its initial concentration would

A

0.01 mol dm−30.01\, mol\, dm^{-3}

B

6.5 mol dm−36.5\, mol\, dm^{-3}

C

0.25 mol dm−30.25\, mol\, dm^{-3}'

D

4.00 mol dm−34.00\, mol\, dm^{-3}

Answer

6.5 mol dm−36.5\, mol\, dm^{-3}

Explanation

Solution

Answer (b) 6.5 mol dm−36.5\, mol\, dm^{-3}