The acid formed when `n`-propyl magnesium bromide is treated with carbon dioxide is

The acid formed when propyl magnesium bromide is treated with carbondioxide and followed by hydrolysis is

The acid formed when propyl magnesium bromide is treated with CO_(2) is -

Write with equation what happens when : Phenyl magnesium bromide in either is treated with carbon dioxide and the product is hydrolised with dilute acid.