For a Cannizzaro reaction,R−CHO+NaOH⟶Rate law is derived as: Rate =k[RCHO]2HO−2From the above rate law, it can be concluded that
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a
hydride donor is a dianion
b
reaction involves hydride ion transfer
c
reaction does not show kinetic isotopic effect
d
reaction is pseudo 2nd order
answer is A.
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Detailed Solution
For formation of dianion hydride donor, an additional mole of NaOH is consumed.Hence, rate becomes 2nd order with respect to HO– and fourth order overall.