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Chapter 2: Solutions
Chapter 3: Ionic Equilibria
Chapter 4: Chemical Thermodynamics
Chapter 5: Electrochemistry
Chapter 6: Chemical Kinetics
Chapter 7: Elements of Groups 16, 17 and 18
Chapter 8: Transition and Inner transition Elements
Chapter 9: Coordination Compounds
Chapter 10: Halogen Derivatives
Chapter 11: Alcohols, Phenols and Ethers
Chapter 12: Aldehydes, Ketones and Carboxylic acids
Chapter 13: Amines
Chapter 14: Biomolecules
Chapter 15: Introduction to Polymer Chemistry
Chapter 16: Green Chemistry and Nanochemistry
Chapter 2: Solutions
SCERT Maharashtra Question Bank solutions for 12th Standard HSC Chemistry Maharashtra State Board 2021 Chapter 2 Solutions Multiple choice questions
Sugar dissolves in water because ______.
sugar is nonpolar
water is polar
it forms hydrogen bonding with water
sugar and water are both polar
The solubility of a gas in water ______.
decreases with increase in temperature
increases with increase in temperature
decreases with decrease in temperature
is not affected by temperature
The units of Henry’s law constant are ______.
bar dm3 mol–1
mol L–1 bar–1
L mol–1 bar–1
bar L–1 mol–1
The colligative properties of solutions _______.
depend on nature of solute particles
do not depend on number of solute particles
do not depend on dissociation of solute in solvent
depend on number of solute particles
The following solution/solvent has maximum vapour pressure _______.
1 M copper sulphate solution
pure solvent water
0.5 M copper sulphate solution
2 M copper sulphate solution
According to Raoult’s law, relative lowering of vapour pressure of solution containing dissolved nonvolatile solute _______.
is equal to mole fraction of solvent
is equal to mole fraction of solute
does not depend on mole fraction of solute
is equal to molality of solution
Freezing point depression constant of a solvent is _______.
inversely proportional to molality of solution
directly proportional to molarity of solution
dependent on molality of solution
expressed in K kg mol–1
Which of the following statements is applicable for 0.1 M urea solution and 0.1 M sucrose solution?
Osmotic pressure of urea solution is greater than that of sucrose solution.
Osmotic pressure of sucrose solution is greater than that of the urea solution.
Sucrose solution is not isotonic with urea solution.
Both the solutions have the same osmotic pressure.
The Henry’s law constant of a gas is 6.7 × 10–4 mol/(L bar). Its solubility when the partial pressure of the gas at 298 K is 0.65 bar is ______.
4.355 × 10–4 mol/L
4.355 × 10–2 mol/L
2.225 × 10–6 mol/L
2.225 × 10–2 mol/L
SCERT Maharashtra Question Bank solutions for 12th Standard HSC Chemistry Maharashtra State Board 2021 Chapter 2 Solutions Very short answer questions
What are hypertonic solutions?
What is a cryoscopic constant?
Write the effect of dissolution of a nonvolatile solute on the freezing point of solvent.
Write the expression for relative lowering of vapour pressure.
State Raoult’s law.
State Henry's law.
What type of solutions exhibit positive deviations from Raoult’s law?
What is enthalpy change and volume change of mixing of two components forming an ideal solution?
The vapour pressures of pure liquids A and B are 0.600 bar and 0.933 bar respectively, at a certain temperature.
What is the mole fraction of liquid B in the solution when the total vapour pressure of their mixture is 0.8 bar?
The vapour pressure of a pure liquid is 0.043 bar at a certain temperature. When a nonvolatile solute is dissolved into it, the vapour pressure of the solution is found to be 0.041 bar. What is the relative lowering of vapour pressure?
SCERT Maharashtra Question Bank solutions for 12th Standard HSC Chemistry Maharashtra State Board 2021 Chapter 2 Solutions Short answer questions (Type- I)
For a very dilute solution, the osmotic pressure is given by π = n2RT/V where V is the volume in L containing n2 moles of nonvolatile solute. Establish the equation for molar mass of solute.
Distinguish between ideal and non-ideal solutions.
Give two points to explain why vapour pressure of solvent is lowered by dissolving nonvolatile solute into it.
In what way Kf and Kb are similar and in what way they are different?
Calculate total moles after dissociation in 0.1 M KCl solution and 0.05 M aluminium sulphate solution. Hence, decide which of the two solutions will have higher freezing point depression.
When 50 g of a nonvolatile solute is dissolved in a certain quantity of solvent, the elevation of boiling point is 2.0 K. What will be the elevation of a boiling point when 30 g of solute is dissolved in the same amount of the same solvent?
SCERT Maharashtra Question Bank solutions for 12th Standard HSC Chemistry Maharashtra State Board 2021 Chapter 2 Solutions Short answer questions (Type- II)
Derive the expression for molar mass of solute in terms of boiling point elevation of solvent.
Explain the osmotic pressure of a solution with the help of a thistle tube.
Explain the phenomenon of osmosis.
With the help of vapour pressure-temperature curves for solution and solvent, explain why boiling point of solvent is elevated when a nonvolatile solute is dissolved into it.
A solution containing 3 g of solute A (M = 60 g/mol) in 1 L solution is isotonic with a solution containing 8.55 g of solute B in 500 mL solution. What is the molar mass of B?
The vapour pressure of a pure solvent at a certain temperature is 0.0227 bar. What is the vapour pressure of a solution containing 6 g of solute (M = 60 g/mol) in 50 g of solvent?
SCERT Maharashtra Question Bank solutions for 12th Standard HSC Chemistry Maharashtra State Board 2021 Chapter 2 Solutions Long answer questions
What are nonideal solutions?
Explain with reasons and diagrams, the positive and negative deviations from Raoult’s law shown by nonideal solutions.
Explain with vapour pressure-temperature curves that the freezing point of a solvent is lowered by dissolving a nonvolatile solute into it. Give reason for such lowering of freezing of solvent.
Define Semipermeable membrane
What are isotonic solutions? Explain with one example.
Answer the following in one or two sentences.
What is osmotic pressure?
Explain the term osmosis.
Chapter 2: Solutions
SCERT Maharashtra Question Bank solutions for 12th Standard HSC Chemistry Maharashtra State Board 2021 chapter 2 - Solutions
SCERT Maharashtra Question Bank solutions for 12th Standard HSC Chemistry Maharashtra State Board 2021 chapter 2 (Solutions) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board 12th Standard HSC Chemistry Maharashtra State Board 2021 solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in 12th Standard HSC Chemistry Maharashtra State Board 2021 chapter 2 Solutions are Solutions, Types of Solutions, Capacity of Solution to Dissolve Solute, Solubility, Vapour Pressure of Solutions of Liquids in Liquids, Colligative Properties of Nonelectrolyte Solutions, Vapour Pressure Lowering, Boiling Point Elevation, Depression in Freezing Point, Osmosis and Osmotic Pressure, Colligative Properties of Electrolytes.
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