Correct order of reactivity of following compounds towards Grignard reagent ?

The correct order of reactivity of the following compounds towards S_(N^1) mechanism is :

What will be the order of reactivity of the following carbonyl compounds with Grignard’s reagent

Select the correct order of decreasing reactivity of the following compounds towards the attack of Grignard reagent. (I) Methyl benzoate , (II) Benzaldehyde (III) Benzoylchloride , (IV) Acetophenone

The increasing order of reactivity of the following compounds towards aromatic electrophilic substitution reaction is :

the increasing order of reactivity of the following compounds towards reaction with alkyl Halides directly is :