In India, the steel production industry requires the import of

Explanation

Saltpetre (Potassium nitrate) is not used in the production of steel. It is instead used in fertilizers, tree stump removal, rocket propellants and fireworks. It is one of the major constituents of gunpowder (blackpowder) and has been used since the Middle Ages as a food preservative. India definitely imports coking coal. So, the answer has to be C. It requires 0.8 tonnes coking coal to produce one tonne of steel. The government had recently imposed a 2.5 per cent duty on coking coal import.Tikdam: India is abundant in coal but it’s common knowledge that India imports coking coal.