How many phases are present at eutectic point ?
How many phases are present at eutectic point ?
A. 2
B. 1
C. 3
D. unpredictable
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The heat of adsorption of a gas caused by Van der Waals forces of attraction and capillarity is equal to the heat of__________________?
The heat of adsorption of a gas caused by Van der Waals forces of attraction and capillarity is equal to the heat of__________________?A. Normal condensation
B. Wetting
C. Sum of A. and B.
D. Difference of A. and B.Isotonic solutions must have the same__________________?
Isotonic solutions must have the same__________________?A. Viscosity
B. Molar concentration
C. Normality
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Heat of solution in a system in which both solute and solvent are liquids is termed as_________________?A. Heat of solvation
B. Heat of hydration
C. Standard integral heat of solution
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B. 5%
C. 18.18%
D. 20%One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?
One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?A. Brix = (400/G) – 400
B. Brix = 200 (G-1)
C. Brix = 145 – (145/G)
D. None of theseWhich is an acidic refractory ?
Which is an acidic refractory ?A. Magnesite
B. Dolomite
C. Fireclay
D. Chrome magnesite