Which of the following is not correctly matched ? Ports Country

Igarka is a river port on the Yenisei in Krasnoyarsk Krai, Russia, inside the Arctic zone of Siberia. It is not a Chinese port, so this pairing is wrong and B is the answer.

Check the others. Rotterdam is the Netherlands' principal port, on the Nieuwe Maas near the North Sea, and it is Europe's biggest cargo port. Montevideo is the capital and chief port of Uruguay on the Rio de la Plata. Jakarta, on Java's north coast, is the capital of Indonesia and its main gateway port (Tanjung Priok).

Core concept: port questions are easiest when you link each port to its country and its water body, such as a river, estuary, sea or ocean. Arctic and Siberian river ports like Igarka also matter for the Northern Sea Route, which Russia is actively developing, so this links to Mains questions on connectivity and trade routes.

Trap: students vaguely know Igarka is Russian but guess from 'Siberia versus China' without checking. Anchor every port to its country first and you will eliminate the wrong pair fast.