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Solutions Questions

Practice 64 Solutions questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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64
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12
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51
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1
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Practice by Exam:Chemistry(62)CHEMISTRY(1)Mathematics(1)

About Solutions — practice questions, PYQs & concepts

Solutions is a frequently-tested topic on Chemistry, CHEMISTRY, Mathematics. ExamTest.live currently lists 64 Solutions questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Solutions weight in competitive exams

Across our Solutions question bank, the largest sources are Chemistry (62), CHEMISTRY (1) and Mathematics (1). Click any exam chip above to drill down to that exam-specific question set.

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  • Start easy: 12 easy Solutions questions are available — build fluency before moving up.
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All Solutions Questions(1–64 of 64)

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Q1easymcqChemistryAIEEE2026
0% accuracy
Equimolar solutions in the same solvent have:
Q2mediummcqChemistryAIEEE2026
0% accuracy
Two solutions of a substance (non-electrolyte) are mixed in the following manner: of first solution of second solution. What is the molarity of the final mixture?
Q3mediummcqChemistryAIEEE2026
0% accuracy
Benzene and toluene form nearly ideal solutions. At , the vapour pressure of benzene is and that of toluene is . The partial vapour pressure of benzene at for a solution containing of benzene and of toluene in torr is:
Q4mediummcqChemistryAIEEE2026
0% accuracy
If is the degree of dissociation of , the van't Hoff's factor () used for calculating the molecular mass is:
Q5easymcqChemistryNEET 20192026
0% accuracy
For an ideal solution, the correct option is:
Q6easymcqChemistryNEET 20192026
0% accuracy
The mixture that forms maximum boiling azeotrope is:
Q7easymcqChemistryNEET (UG) 20172026
0% accuracy
If molality of the dilute solution is doubled, the value of molal depression constant () will be:
Q8easymcqChemistryNEET (UG) 20172026
0% accuracy
Which of the following is dependent on temperature?
Q9mediummcqChemistryAIEEE 20062026
0% accuracy
The ionic mobility of alkali metal ions in aqueous solution is maximum for:
Q10mediummcqChemistryAIEEE 20062026
0% accuracy
Density of a solution of acetic acid in water is . The molality of the solution is:
Q11mediummcqChemistryAIEEE 20062026
0% accuracy
of glucose () is added to of water. The vapour pressure of water for this aqueous solution at is:
Q12mediummcqChemistryAIEEE 20072026
0% accuracy
A mixture of ethyl alcohol and propyl alcohol has a vapour pressure of at . The vapour pressure of pure propyl alcohol is . If the mole fraction of ethyl alcohol is , its vapour pressure in pure state at the same temperature will be:
Q13mediummcqChemistryAIEEE 20072026
0% accuracy
A solution of a substance is isotonic with a solution of urea (molar mass ) in the same solvent. If the densities of both the solutions are assumed to be equal to , molar mass of the substance will be:
Q14hardmcqChemistryNEET (UG) 20242026
The plot of osmotic pressure () vs concentration ( in ) for a solution gives a straight line with slope . The temperature at which the measurement is done is:(Use )
Q15mediummcqChemistryAIEEE 20042026
Which one of the following statements is false?
Q16mediummcqChemistryNEET (UG) 20242026
of sodium hydroxide was treated with of solution. The mass of sodium hydroxide left unreacted is equal to:
Q17mediummcqChemistryNEET (UG) 20242026
The Henry’s law constant () values of three gases (A, B, C) in water are , , and , respectively. The solubility of these gases in water follows the order:
Q18easymcqChemistryNEET 20222026
In one molal solution that contains of a solute, there is:
Q19mediummcqChemistryNEET 20212026
The correct option for the value of vapour pressure of a solution at with benzene to octane in molar ratio is: [At vapour pressure of benzene is and that of octane is ]
Q20mediummcqChemistryNEET 20212026
Three solutions were prepared by dissolving of glucose (), of urea (), and of sucrose () in of water. The right option for the decreasing order of osmotic pressure of these solutions is:
Q21mediummcqChemistryAIEEE 20042026
Which one of the following aqueous solutions will exhibit the highest boiling point?
Q22mediummcqChemistryAIEEE 20042026
Which of the following liquid pairs shows a positive deviation from Raoult’s law?
Q23easymcqCHEMISTRYNEET 20192026
The correct statement regarding a solution of two components A and B exhibiting positive deviation from ideal behaviour is:
Q24mediummcqChemistryAIEEE2026
At , the vapour pressure of pure liquid ‘A’ is and that of pure liquid ‘B’ is . If a mixture solution of ‘A’ and ‘B’ boils at and pressure, the amount of ‘A’ in the mixture is ():
Q25mediummcqChemistryAIEEE2026
The vapour pressure of water at is . If of glucose () is added to of water at , the vapour pressure of the resulting solution will be:
Q26mediummcqChemistryAIEEE2026
If sodium sulphate is considered to be completely dissociated into cations and anions in aqueous solution, the change in freezing point of water (), when of sodium sulphate is dissolved in of water, is ():
Q27mediummcqChemistryAIEEE2026
On mixing, heptane and octane form an ideal solution. At , the vapour pressures of the two liquid components (heptane and octane) are and respectively. Vapour pressure of the solution obtained by mixing of heptane and of octane will be (molar mass of heptane and of octane ):
Q28mediummcqChemistryFIITJEE AIEEE 2011 (Set Q)2026
The degree of dissociation of a weak electrolyte, is related to van't Hoff factor by the expression:
Q29mediummcqChemistryFIITJEE AIEEE 2011 (Set Q)2026
Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to of water to prevent it from freezing at will be: ( for water , and molar mass of ethylene glycol )
Q30mediummcqChemistryFIITJEE AIEEE 2011 (Set Q)2026
A aqueous solution of methyl alcohol, , is supplied. What is the mole fraction of methyl alcohol in the solution?
Q31mediummcqChemistryAIEEE 20122026
The density of a solution prepared by dissolving of urea (mol. mass ) in of water is . The molarity of this solution is:
Q32mediummcqChemistryAIEEE 20122026
for water is . If your automobile radiator holds of water, how many grams of ethylene glycol () must you add to get the freezing point of the solution lowered to ?
Q33mediummcqChemistryJEE Main2026
The molarity of a solution obtained by mixing of with of will be:
Q34mediummcqMathematicsMathematics Mock Test - 32026
The function is a solution to the differential equation:
Q35mediummcqChemistryNEET 2020 E12026
The freezing point depression constant () of benzene is . The freezing point depression for the solution of molality containing a non-electrolyte solute in benzene is (rounded off upto two decimal places):
Q36mediummcqChemistryNEET 2020 E12026
The mixture which shows positive deviation from Raoult’s law is:
Q37easymcqChemistryNEET 20172026
Which of the following is dependent on temperature?
Q38mediummcqChemistryNEET 20172026
If molality of the dilute solution is doubled, the value of molal depression constant () will be:
Q39mediummcqChemistryChemistry
6% accuracy
Which of the following aqueous solutions will exhibit the highest boiling point?
Q40mediummcqChemistryChemistry
0% accuracy
Match List - I with List - IIList-I (Example)A. HumidityB. AlloysC. AmalgamsD. SmokeList-II (Type of Solution)I. Solid in solidII. Liquid in gasIII. Solid in gasIV. Liquid in solidChoose the correct answer from the options given below:
Q41mediummcqChemistryChemistry
0% accuracy
The freezing point depression constant for water is . If is dissolved in , the freezing point is changed by . Calculate the van't Hoff factor for : (Molar mass of )
Q42mediummcqChemistryChemistry
0% accuracy
The van't Hoff factor for a compound which undergoes dissociation in one solvent and association in another solvent is respectively:
Q43mediummcqChemistryChemistry
0% accuracy
Mole fraction of the solute in a molal aqueous solution is:
Q44mediummcqChemistryChemistry
weak acid is ionized. . Freezing point is:
Q45easymcqChemistryChemistry
Assertion : The molecular weight of acetic acid determined by depression in freezing point method in benzene and water was found to be different.Reason : Water is polar and benzene is non-polar.
Q46mediummcqChemistryChemistry
A solution containing of urea (molecular mass = ) is isotonic with a solution of a non-volatile solute. The molecular mass of this non-volatile solute is :
Q47mediummcqChemistryChemistry
of non-electrolyte solute (molar mass ) was dissolved in of benzene. If the freezing point depression constant, of benzene is , the freezing point of benzene will be lowered by :
Q48mediummcqChemistryChemistry
A solution of acetone in ethanol :
Q49mediummcqChemistryChemistry
During osmosis, the flow of water through a semi-permeable membrane is :
Q50mediummcqChemistryChemistry
Concentrated aqueous sulphuric acid is by mass and has a density of . The volume of acid required to make one litre of solution is:
Q51mediummcqChemistryChemistry
aqueous solution of a weak acid () is ionised. If for water is , the lowering in freezing point of the solution is:
Q52mediummcqChemistryChemistry
A aqueous solution of an ionic compound freezes at . Number of moles of ions which of ionic compound produces on being dissolved in water will be ():
Q53mediummcqChemistryChemistry
What is the in the final solution prepared by mixing of with of ?
Q54mediummcqChemistryChemistry
An aqueous solution is in . Which change will cause the vapour pressure of the solution to increase?
Q55mediummcqChemistryChemistry
A solution of sucrose (molar mass ) has been prepared by dissolving of sucrose in of water. The freezing point of the solution obtained will be ( for water ):
Q56easymcqChemistryChemistry
Which one of the following is incorrect for ideal solution?
Q57mediummcqChemistryChemistry
of an aqueous solution of a protein contains . The osmotic pressure at is . The molar mass of protein is ():
Q58mediummcqChemistryChemistry
Vapour pressure of chloroform () and dichloromethane () at are and respectively. Vapour pressure of the solution obtained by mixing of and of at the same temperature will be: (Molecular mass of and molecular mass of )
Q59mediummcqChemistryChemistry
and are the vapour pressure of pure liquid components and , respectively, of an ideal binary solution. If represents the mole fraction of component , the total pressure of the solution will be:
Q60easymcqChemistryChemistry
Of the following aqueous solutions, which one will exhibit the largest freezing point depression?
Q61mediummcqChemistryChemistry
What is the mole fraction of the solute in a aqueous solution?
Q62mediummcqChemistryChemistry
At the vapour pressure of a solution of of a solute in water is . If , the boiling point of this solution will be:
Q63mediummcqChemistryChemistry
Which of the following statements about the composition of the vapour over an ideal molar mixture of benzene and toluene is correct? Assume that the temperature is constant at . (Given vapour pressure data at : benzene , toluene )
Q64easymcqChemistryChemistry
The van't Hoff factor () for a dilute aqueous solution of the strong electrolyte barium hydroxide is:

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