grignard reagent

Aldehyde reacts with Grignards reagent to form- - - - - - - -

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 .

Grignard's reagents give alkanes by reaction with :