Answer
The buoyant force exerted on a body is $=density\times g\times volume $
Since buoyant force does not depend on the mass of body, the buoyant force exerted will be same on both iron and aluminium blocks.
Work Step by Step
The buoyant force exerted on a body is $=density\times g\times volume $
Since buoyant force does not depend on the mass of body, the buoyant force exerted will be same on both iron and aluminium blocks.