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(3) 1.5 mole min" litre (4) 2 mol-' min-1 litre 12. Inversion of a sugar follows first order rate equation which can be followed by noting the change in rotation of the plane of polarization of light in the polarimeter. If ror, and r, are the rotations at t = co. t= t and t = 0 then, first order reaction can be written as (1) K = logo 65 =. (2) K 1 ro-ro 0 (3) K = - In (4) K= - K In P -t re-ro " ri-

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Q1

of1510. Inversion of a sugar follows first order rate equationwhich can be followed by noting the change inrotation of the plane of polarization of light in thepolarimeter. If r and ro are the rotations ao, tt and t 0 then, first order reaction canbe written as(1) K t lo9e ro(2) K t In(3) KE t In rr1 ro

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