The product (s) of roasting of a sulphide ore is (are) ?

Related Mcqs:

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?

A. Lead B. Copper C. Aluminium D. Wrought iron...

Boiler tube size is specified by its thickness and _____________________ diameter ?

A. Outside B. Inside C. Mean D. None of these...

Spherical shape of mercury droplets is due to its____________________?

A. High viscosity B. Low surface tension C. High density D. High surface tension...

Steel is welded using the ________________ flame ?

A. Carburising B. Neutral C. Oxidising D. All A, B. & C...

Which of the following phenomenon will exhibit the minimum heat transfer ?

A. Boiling B. Forced convection in air C. Free convection in air D. Conduction in air...