Prepare for NEET Chemistry Some Basic Concepts in Chemistry (Concentration Methods) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to handle molarity, molality, and normality.
NEET Questions / Chemistry / Some Basic Concepts in Chemistry / Concentration Methods
The process of removing gangue from ore is known as:
Concentration
Refining
Smelting
Roasting
Which of the following is used as a depressant in the froth flotation process for separating ZnS and PbS?
NaCN
Pine oil
Water
Xanthates
Which of the following is NOT a method for expressing the concentration of a solution?
Molarity
Molality
Mass percentage
Density
If 20 g of solute is dissolved in 80 g of solvent, what is the mass percentage of the solute?
20%
80%
25%
40%
Molality is defined as the number of moles of solute per:
Liter of solution
Kilogram of solvent
Kilogram of solution
Liter of solvent
Which concentration term is independent of temperature?
Molarity
Molality
Normality
Formality
A solution is prepared by dissolving 0.5 moles of solute in 250 g of solvent. What is the molality of the solution?
2 m
0.5 m
1 m
4 m
What is the molarity of a solution containing 1 mole of solute in 500 mL of solution?
0.5 M
1 M
2 M
4 M
Which of the following methods is most suitable for separating a mixture of iodine and potassium chloride?
Sublimation
Distillation
Chromatography
Solvent Extraction
A mixture of sand, salt, and iron filings can be separated using a combination of methods. Which sequence is the most efficient?
Dissolution, filtration, evaporation, magnetic separation
Filtration, dissolution, evaporation, magnetic separation
Magnetic separation, dissolution, filtration, evaporation
Evaporation, filtration, dissolution, magnetic separation
