The smell is different. Soju has a light fragrance, and you can smell it when you are close. However, the aroma of liquor is very rich, which can be divided into many types according to the flavor type: Maotai-flavor, Luzhou-flavor and Fen-flavor. If you drink white wine at home, it usually takes several hours to dispel the smell.
Taste difference: the entrance of shochu is fresh and refreshing, with less stimulation. The entrance of liquor is generally soft, with a little spicy flavor and great stamina.
Liquor is the general name of China's national wine, also known as shochu, Laobaigan, burning knives and so on. And shochu is distilled, transparent and colorless, with high alcohol content, which can be burned by ignition, also known as liquor. From this perspective, liquor and shochu are actually the same, but they are called differently, not whether they are heated or not.
On the other hand, liquor and shochu belong to grain distilled liquor, and they are also transparent and colorless in appearance, so the general types are the same. In China, it can be said that liquor includes shochu, which is a kind of liquor, and there is an inclusive relationship between them.