Chemically, mullite refractories is________________?

Related Mcqs:

Which is an acidic refractory ?

A. Magnesite B. Dolomite C. Fireclay D. Chrome magnesite...

pH value of H2SO4 (5% concentration) is__________________?

A. 5 B. 7 C. > 7 D. < 7...

Size range of the colloids particles is __________________?

A. 5 – 200 milli-microns B. 50 – 200 microns C. 500 – 1000 microns D. 10 – 50 Angstrom...

The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?

A. 0.07 B. 0.09 C. 0.11 D. 0.13...

80 kg of Na2SO4 (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na2SO4 .10H2O crystals separate out. The weight fraction of Na2SO4 in the remaining solution is_________________?

A. 0.00 B. 0.18 C. 0.24 D. 1.00...