Why is Grignard reagent not successful in the preparation of ketones from acid chlorides?

Why Grignard reagents are not used in place of dialkyl cadmium during the preparation of ketones from acid chlorides ?

Grignard reagent adds to:

The reagent( s) used in the preparation of aspirin from salicylic acid is/are

Grignard reagent can be prepared by

Grignard reagent is prepared by the reaction between:

Which metal is used in the preparation of Grignard's reagents from alkyl halides ?

Which metal is used in the preparation of Grignard's reagents from alkyl halides?

A : Two moles of Grignard reagent is consumed in the formation of tertiary alcohol from ester following by hydrolysis . R : One mole of Grignard reagent convert ester into Ketone and second mole of Grignard reagent adds to Ketone .