Which island is separated from the Asian mainland by the Strait of Malacca?

Which island is the second-largest island in the Mediterranean Sea? What is the largest island in the Indian Ocean? Which island is the largest in the Bismarck Archipelago? What is the name of the largest island in the Solomon Islands? Which island is part of the Svalbard archipelago? Which island is the largest in the Hebrides? What is the world's largest island with no permanent residents? Which country is the only neighbor of Vatican City?