Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with______________?

Related Mcqs:

The specific gravity of coal depends mainly on its ______________ content?

A. Carbon B. Volatile matter C. Ash D. Moisture...

Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system ?

A. High silicon iron, silicon rubber, Kel-F and Teflon B. Mild steel and stainless steel C. Cast iron, tin and aluminium D. Copper, nickel and Monel...

The hardest material just prior to diamond in Mhos scale is_________________?

A. Topaz B. Carborundum C. Corundum D. Calcite...

For storing water and acid free benzol, use a ______________ vessel?

A. Steel B. Karbate C. Stainless steel D. None of these...

Rubber lined vessels are corroded by the action of__________________?

A. Aqua regia B. Chloroform C. Sulphuric acid (95%) D. All A., B. and C....