A binary liquid mixture of components A and B exhibits an azeotrope at a specific composition. Which of the following statements is ALWAYS true about this azeotropic mixture?
The composition of the vapor phase is identical to the composition of the liquid phase.
The boiling point of the azeotrope is the average of the boiling points of pure A and B.
The azeotrope can be separated into pure A and B by fractional distillation.
The azeotrope always shows a positive deviation from Raoult's Law.
Related Questions
Chromite ore is concentrated by:
Magnetic separation
Froth flotation
Leaching
Gravity separation
Which method is employed for concentrating sulfide ores?
Froth flotation
Magnetic separation
Leaching
Gravity separation
What is the unit of molarity?
mol/kg
mol/L
g/L
g/mol
The least count of burette used normally in laboratory is :
0.1 mL
0.01 mL
0.2 mL
0.02 mL
A standard solution is one whose :
Concentration is 1
Concentration is unknown
Concentration is known
None of the above
The process of removing gangue from ore is known as:
Concentration
Refining
Smelting
Roasting
A standard solution is one whose :
Concentration is 1
Concentration is unknown
Concentration is known
None of the above
Which of these is the correct formula for calculating molality?
Moles of solute / Liters of solution
Moles of solute / Kilograms of solvent
Grams of solute / Liters of solution
Grams of solute / Kilograms of solvent
The least count of burette used normally in laboratory is :
0.1 mL
0.01 mL
0.2 mL
0.02 mL
Which of the following is NOT a method for expressing the concentration of a solution?
Molarity
Molality
Mass percentage
Density
