Which is an acidic refractory ?

Related Mcqs:

Real gases approach ideal behaviour at___________________?

A. High pressure & high temperature B. Low pressure & high temperature C. High pressure & low temperature D. Low pressure & low temperature...

The hydroxyl ion (OH-) concentration in a solution having pH value 3 will be_________________?

A. 10-11 B. 10-10 C. 10-3 D. 10-4...

For an ideal gas, the compressibility factor________________?

A. Decreases with pressure rise B. Is unity at all temperature C. Is unity at Boyle’s temperature D. Zero...

Heat of reaction is not influenced by__________________?

A. The route/method through which final products are obtained B. The physical state (e.g., solid, liquid or gaseous) of reactants and products C. Whether the reaction is carried out at constant temperature or constant pressure D. None of these...

1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?

A. 5 B. 10 C. 15 D. 20...