A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the ____________________?

Related Mcqs:

Thermal conductivity of refractory bricks____________________?

A. Increases with decrease in porosity B. Decreases with decreases in porosity C. Is independent of its porosity and is maximum for insulating bricks D. Increases with the amount of air entrapped in pores...

Osmotic pressure of the solution can be increased by_________________?

A. Decreasing its temperature B. Increasing the volume of the vessel containing the solution C. Diluting the solution D. None of these...

Which property of refractories is the most important for top section of the blast furnace ?

A. Resistance to abrasion B. Resistance to slag penetration C. Stability of volume at high temperature D. Resistance to corrosion by slag...

The crystallisation of a solute from a solution may be done by________________?

A. Removal of pure solvent by evaporation B. Change of temperature thereby causing super-saturation C. Changing the nature of the system by the addition of a more soluble material D. All A., B. & C....

40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is_________________?

A. 1/2 B. 1/3 C. 1/4 D. 2/3...