______________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace?

Related Mcqs:

Reaction of calcium carbide with water produces a gas, which is used_________________?

A. As an illuminant B. For metal cutting/welding C. Both A. & B. D. Neither A. nor B....

Industrial production of chloroform requires acetone and_____________________?

A. Phosgene B. Calcium hypochlorite C. Chlorine D. Ammonium chloride...

Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo ?

A. Depithing B. Digestion C. Bleaching D. None of these...

Finely ground calcium aluminate & silicate is a/an ____________________?

A. Cermet B. Cement C. Abrasive D. Explosive...

Hydrogenation of oil takes place in a/an ____________________ reactor ?

A. Autothermal B. Trickle bed C. Plug flow D. None of these...