The process of converting sulphite ores into oxides by heating strongl – InterviewSolution

InterviewSolution

1.	The process of converting sulphite ores into oxides by heating strongly in excess of air is called calcination.
Answer» Correct Answer - Fasle. The process of voerting sulphide ores into oxides by heating strongl in air is called roasting

Discussion

No Comment Found

Related InterviewSolutions

What are the physical properties of metals and nonmetals?
Write any three physical properties of nonmetals.
Distinguish between the physical properties of metals and nonmetals with respect to the following points:(1) Physical state (2) Lustre (3) Ductility and malleability (4) Conduction of heat and electricity (5) Hardness (6) Melting and boiling points.
Write short note on the following:Alloying.
Write short note on the following:Galvanizing.
Galvanizing
Find the correlation in the given pair and rewrite the answer:i. Brass : Copper and Zinc :: Bronze :………….ii. Tinning : Tin :: Galvanizing :…………….iii. Pressure cooker : Anodizing :: Silver plated spoons :…………..iv. The sulphides ores are strongly heated in air : Roasting :: The carbonates ores are strongly heated in a limited supply of air :………….v. Sulphide ores : Froth floatation method : Cassiterite ore :………..
Choose from the following list of the substances, Acetylence gas, aqua fortis, coke, brass, barium chloride, bronze, platinum. The substance which is an alloy of zinc, copper and tin.
Brass : Copper and zinc : : Bronze : ____________
Select which is not an alloy of copper : (A) Brass (B) Bronze (C) Solder (D) Duralumin.