Orange tree

Question

Why does my orange smell like an orange but taste like a lemon?

Answer 1

Do you know the variety of Orange Tree that you have planted?
There are different types of oranges, and some are of a bitter variety.
Optimizing the growing conditions and plenty of warm sunshine produces the best tasting fruit.
Here are some links with more information.

https://www.gardeningknowhow.com/edible/fruits/oranges/different-types-of-oranges.htm
https://www.gardeningknowhow.com/edible/fruits/oranges/growing-an-orange-tree.htm