Correct answer
D. Brine and coal
Explanation
The correct answer is Brine and coal.
Wrought iron is ________?
A gas can be liquefied by pressure alone only, when its temperature is ________ its critical temperature?
A Potassic fertilizer contains 50% K2O. It could be ________?
A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2; then the partial pressure of N2 in the mixture will be ________ kgf/cm2?
In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇌ 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by?
The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an ________?