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

Related Mcqs:

Condenser tubes are not made of_________________?

A. Cartridge brass B. Muntz brass C. Wood metal D. Aluminium brass alloy...

Ferric stainless steels compared to austenitic stainless steels________________?

A. Have lower corrosion resistance B. Are harder to fabricate C. Are less ductile and hence less suitable for cold pressing D. All A., B. and C....

As the impurities are oxidised, the melting point of iron___________________?

A. Decreases B. Remains unchanged C. Increases D. May increase or decrease; unpredictable...

Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70% ?

A. Cast iron B. Steel C. Nickel D. Karbate...

Which of the following is produced by condensation polymerisation ?

A. Bakelite B. Polythene C. Poly vinyl chloride D. Polystyrene...