Which of the following is an ore of iron ?

Related Mcqs:

Which one of the following is not an elastomer ?

A. Polyisoprene B. Neoprene C. Nitrile-butadiene D. None of these...

Catalyst used in the oxidation of benzene to produce Maleic anhydride is ______________________?

A. V2O5 B. Pt C. Ni D. Cr...

The chamber process is______________________?

A. Preferred over contact process for producing 98 to 100% H2SO4 and various oleums B. Non-catalytic and operates only on pyrites C. A batch process for directly producing high strength (98 to 100%) H2SO4 D. None of these...

Phosphoric acid is prepared from_____________________?

A. Cryolite B. Chalcopyrite C. Rock phosphate D. None of these...

The major use of butadiene is____________________?

A. As a plasticiser for unsaturated polyester B. In the manufacture of synthetic rubber C. As an anti-skinning agent in paint D. None of these...