What is an ore?

Malachite is an ore of____.

What is ORS?

What is the amount of sodium bicarbonate present in the commercial ORS?

State the process in which sulphide ores (are) concentrated. What is pyrometallurgy?

State with proper reason for which ores calcination and roasting applicable. What is matt?

Which of the following is an ore of aluminium?

Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate ?

What is the role of adsorption in froth floatation process used especially for concentration of sulphide ores?