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Which ion hydrolysis the reaction in alkali hydrolysis?

Which ion hydrolysis the reaction in alkali hydrolysis? Correct Answer Hydronium ion

The use of low concentrations of alkali in the hydrolysis of esters and similar materials: Here the hydroxyl ion is supposed to catalyse the reaction as the hydrogen ion does in catalysis by dilute acid.

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For the reaction, A = X + Y, the respective concentrations are CA, CX and CY. The forward reaction rate constant is kf and the backward reaction rate constant is kb. Choose the correct statement from the following:
P. At equilibrium, kf CA > kB CxCy
Q. If the reaction is irreversible than, kb CXCY = 0
R. The backward reaction rate will essentially be first order, if the forward reaction rate is first order.
S. Activation energy for the first order forward reaction will be independent of temperature.
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The alkali metals have relatively low melting point. Which one of the following alkali metals is expected to have the highest melting point?
Which of the following statements is true/false?
1. An alkali that is completely ionized in water produces a large number of OH- ions. For example NaOH, KOH
2. An alkali that is partially ionized in water produces a large number of OH+ ions. For example KOH