Sucrose can be hydrolysed in the presence of an acid . It is hydrolysed to 57 % in 66 minutes . Calculate the time for 75 % hydrolysis , considering that the reaction is first order .
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Solution: Among Mg and MgO ,only Mg gives Hydrogen gas with acid . 1 mole i.e 24gm of "Mg' gives 22.4 lit of H2 at STP. ... of Mg=2.4gm and wt of MgO in the mixture= 10-2.4= 7.6gm.
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