Chalcopyrite is the main ore of_________________?

Related Mcqs:

Which of the following is not present in bagasse fibre ?

A. Cellulose B. Lignin C. Pentogens D. None of these...

Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is ______________ percent?

A. 10 B. 50 C. 80 D. 95...

Pick out the wrong statement ?

A. Low intensity explosives are also called propellants, whereas high intensity explosive are called detonators B. Gun powder comprises of 75% salt petre, 15% charcoal and 10% sulphur C. Lead azide is a popular military explosive D. TNT is a hygroscopic explosive having very high melting point and is non-toxic to human being...

____________ are used as corrosion inhibitor for iron & steel in aqueous solutions ?

A. Phosphates B. Chromates C. Sulphates D. Bi-carbonates...

Kaolin is a/an _____________________?

A. Refractory material B. Synthetic resin C. Artificial abrasive D. Blue pigment...