Chemistry-
General
Easy
Question
For a dilute solution containing a nonvolatile solute, which of the following expressions correctly represents the molar mass of solute?
The correct answer is:
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The expression relating mole fraction of solute (x2) and molarity (M) of the solution is Where 
is the density of solution and M1 and M2 are the molar masses of solvent and solute respectively.
The expression relating mole fraction of solute (x2) and molarity (M) of the solution is Where is the density of solution and M1 and M2 are the molar masses of solvent and solute respectively.
chemistry-General
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The correct expression relating molality (m), molarity (M), density (d) and molar mass (M2) of solute is
The correct expression relating molality (m), molarity (M), density (d) and molar mass (M2) of solute is
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In a 0.2 molal aqueous solution of a weak acid HX, the degree of ionization is 0.3. Taking Kf for water as 1.85,the freezing point of the solution will be nearest to
In a 0.2 molal aqueous solution of a weak acid HX, the degree of ionization is 0.3. Taking Kf for water as 1.85,the freezing point of the solution will be nearest to
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The molal elevation constant of water = 0.52°C. The boiling point of 1.0 molal aqueous KCl solution (assuming complete dissociation of KCl), should be
The molal elevation constant of water = 0.52°C. The boiling point of 1.0 molal aqueous KCl solution (assuming complete dissociation of KCl), should be
chemistry-General
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How many grams of a diabasic acid (Mol. wt. = 200) should be present in 100 ml of its aqueous solution to give decinormal strength?
How many grams of a diabasic acid (Mol. wt. = 200) should be present in 100 ml of its aqueous solution to give decinormal strength?
chemistry-General
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Normality of a 2 M sulphuric acid is
Normality of a 2 M sulphuric acid is
chemistry-General
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Formation of a solution from two components can be considered as
pure solvent → separated solvent molecules, DH1
pure solute → separated solute molecules, DH2
separated solvent and solute molecules → solution DH3
Solution so formed will be ideal if
Formation of a solution from two components can be considered as
pure solvent → separated solvent molecules, DH1
pure solute → separated solute molecules, DH2
separated solvent and solute molecules → solution DH3
Solution so formed will be ideal if
chemistry-General
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A Solution contains non-volatile solute of molecular mass M2. Which of the following can be used to calculate the molecular mass of solute in terms of osmotic pressure? (m2 = mass of solute, V = volume of solution, 
= osmotic pressure)
A Solution contains non-volatile solute of molecular mass M2. Which of the following can be used to calculate the molecular mass of solute in terms of osmotic pressure? (m2 = mass of solute, V = volume of solution, = osmotic pressure)
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Identify the mixture that shows positive deviations from Raoult’s law
Identify the mixture that shows positive deviations from Raoult’s law
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The vapour pressure of a solution (P) and the vapour pressure of the solvent (Pº) are related to each other as
The vapour pressure of a solution (P) and the vapour pressure of the solvent (Pº) are related to each other as
chemistry-General
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The depression in freezing point for 1M urea, 1M glucose and 1M NaCl are in the ratio.
The depression in freezing point for 1M urea, 1M glucose and 1M NaCl are in the ratio.
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Which of the following 0.10 m aqueous solution will have the lowest freezing point?
Which of the following 0.10 m aqueous solution will have the lowest freezing point?
chemistry-General
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Which of the following is not correct for ideal solution?
Which of the following is not correct for ideal solution?
chemistry-General
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0.1 M NaCl and 0.1 M CH3COOH are kept in separate containers. If their osmotic pressures are P1 and P2 respectively then what is the correct statement?
0.1 M NaCl and 0.1 M CH3COOH are kept in separate containers. If their osmotic pressures are P1 and P2 respectively then what is the correct statement?
chemistry-General
chemistry-
Which of the following statements is not correct for sigma- and pi- bonds formed between two carbon atoms?
Which of the following statements is not correct for sigma- and pi- bonds formed between two carbon atoms?
chemistry-General
