Category: Stoichiometry

A. Refractories used in muffle furnace should have low thermal conductivity
B. The electrical resistivity of refractories drops rapidly with rise in temperature
C. For reducing spalling tendency, the refractory should be well fired and its porosity should be more
D. Refractoriness under load (RUL) of a refractory is always less than its refractoriness

A. Conversion of graphite to diamond
B. Decomposition of water
C. Dehydrogenation of ethane to ethylene
D. None of these

A. Fireclay
B. Silica
C. Chrome magnesite
D. Zirconia

A. Kinetic energy
B. Intermolecular forces of attraction
C. Potential energy
D. Total energy

A. NH3
B. CO2
C. H2S
D. CH4

A. Refractoriness
B. Melting point
C. Rate at which a fluid will pass through the pores
D. Expansion during heating

A. A substance existing above its critical temperature is called a saturated vapor
B. A mixture of vapor gas is called saturated, if the equilibrium vapor pressure of the liquid is
more than the partial pressure of the vapor at the same temperature
C. Heat added to or given up by a substance at constant temperature is called the sensible heat
D. The end points of a vapor-pressure vs. temperature curve are critical and triple points

A. The strong base and strong acid reacts completely
B. The salt formed does not hydrolyse
C. Only OH- and H+ ions react in every case
D. The strong base and strong acid reacts in aqueous solution

A. Temperature
B. Volume of solution
C. Moles of non-volatile solute
D. None of these

A. Total pressure
B. Absolute humidity at a given temperature
C. Both A. and B.
D. Neither A. nor B.