Chemically, mullite refractories is________________?
Chemically, mullite refractories is________________?
A. 3Al2O3.2SiO2
B. Al2O3
C. ZrSO4
D. ThO2
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No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules____________________?
No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules____________________?A. Collide without loss of energy
B. Do work equal to loss in kinetic energy
C. Are above the inversion temperature
D. Exert no attractive force on each other40 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_________________?
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. 2/3In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest ?
In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest ?A. 30 c.c acid and 30 c.c base
B. 20 c.c acid and 25 c.c base
C. 15 c.c acid and 35 c.c base
D. 35 c.c acid and 15 c.c baseUnit of power is____________________?
Unit of power is____________________?A. Joule
B. Watt
C. Joule/Second
D. Both B. & C.Dissolving a solute in a solvent does not change its________________?
Dissolving a solute in a solvent does not change its________________?A. Specific heat
B. Vapour pressure
C. Viscosity
D. None of theseWhat is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20) ?
What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20) ?A. AB3
B. A2B3
C. A2B
D. AB2