Multiple choice Which is the tallest mountain in Australia and is named after a Polish commander? Mount Aconcagua Mount Kosciuszko Mount Mitchell K2 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Mount Kosciuszko is the highest mountain on the Australian mainland, standing at 2,228 meters. It was named in 1840 by the Polish explorer Paul Edmund Strzelecki in honor of Tadeusz Kosciuszko, a famous Polish military leader and hero.