when two atoms in a molecule have substantially different electronegativity: One atom attracts electrons more than another, becoming more negative, while the other atom becomes more positive.
States earn maximum revenue through commercial taxes.
Commercial Tax is a form of sales tax, now referred to as GST(Goods and Service Tax) in India. It is levied on all kinds of commercial goods and services.
This region is thus called because of its rich coal field and the iron and steel plants that have come up around them. Rhur valley is a major Industrial hub of West Germany.