Observe the following reaction :Ar-C-Hoverset(OH^(-))hArr[X]overset(Ar-overset(O)overset(||)C-H)hArr[X]+[Z] overset(H^(+)"Transfer")hArrY^(1)+Z^(1)Rate of step -2 will be fastest with the combination of :

Observe the following reaction :Ar-C-Hoverset(OH^(-))hArr[X]overset(Ar

1.	Observe the following reaction :Ar-C-Hoverset(OH^(-))hArr[X]overset(Ar-overset(O)overset(\|\|)C-H)hArr[X]+[Z] overset(H^(+)"Transfer")hArrY^(1)+Z^(1)Rate of step -2 will be fastest with the combination of :
Answer» SOLUTION :More positive charge on CARBONYL carbon is NEEDED.