The most densely populated city which is also the capital of a country in Africa is?

The most densely populated city which is also the capital of a country in Africa is Cairo, which is the capital of Egypt. Cairo is the largest city in Egypt and one of the most populous cities in Africa and the Arab world, with a population of over 9 million people. Its metropolitan area is even larger, with over 20 million people. The reason why Cairo is the most densely populated capital city in Africa is due to its long history, strategic location, and economic opportunities that have attracted people from all over Egypt and neighboring countries. As a result, the city has experienced rapid population growth, leading to overcrowding, traffic congestion, and other urban challenges.