Why do lakes lying in granite basins tend to become acidified by acid rain more tha limestone basins?

Granite and limestone are very different rocks. Granite is an igneous rock formed from magma. It contains many different types of minerals. Limestone is a sedimentary rock. Although it may have many other minerals, it is primarily the mineral calcite, which has the chemical formula of calcuim carbonate. For more information, you may visit at www.chinasink.com