Class 12 Exam  >  Class 12 Questions  >  Only One Option Correct TypeDirection (Q. Nos... Start Learning for Free
Only One Option Correct Type
Direction (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.
Q.
Which has higher van’t Hoff factor value in aqueous solution?
  • a)
    Potash alum
  • b)
    Mohr's salt
  • c)
    Potassium ferrocyanide
  • d)
    Carnalite
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Only One Option Correct TypeDirection (Q. Nos. 1-28) This section cont...
One molecule of potash alum produces 8 ions in solution (K2SO4.AI2(SO4)3.24H2O)
One molecule of Mohr's salt produces 5 ions in solution
(FeSO4).(NH4)2SO4.6H2O) One molecule of potassium ferrocyanide produces 5 ions in solution [K4[Fe(CN)6].
One molecule of carnalite produces 5 ions in solution (KCI-MgCI2.6H2O)
View all questions of this test
Most Upvoted Answer
Only One Option Correct TypeDirection (Q. Nos. 1-28) This section cont...
Potash alum (KAl(SO4)2·12H2O) has a higher vant Hoff factor value in aqueous solution compared to the other compounds mentioned. The vant Hoff factor (i) is a measure of the extent to which a compound dissociates into ions when dissolved in a solvent. It is equal to the ratio of moles of particles in solution to moles of solute dissolved.

Potash alum is a hydrated double salt of aluminum sulfate and potassium sulfate. It dissociates in water to release aluminum ions (Al3+), potassium ions (K+), sulfate ions (SO42-), and water molecules (H2O).

On the other hand, Mohr's salt (Fe(NH4)2(SO4)2·6H2O), potassium ferrocyanide (K4[Fe(CN)6]), and carnalite (KCl·MgCl2·6H2O) have lower vant Hoff factor values in aqueous solution.

- Mohr's salt: Mohr's salt is a hydrated double salt of iron(II) sulfate and ammonium sulfate. It dissociates in water to release iron(II) ions (Fe2+), ammonium ions (NH4+), sulfate ions (SO42-), and water molecules (H2O). Since it has fewer ions in solution compared to potash alum, its vant Hoff factor value is lower.
- Potassium ferrocyanide: Potassium ferrocyanide is a coordination compound. It dissociates in water to release potassium ions (K+), ferrocyanide ions ([Fe(CN)6]4-), and water molecules (H2O). Again, it has fewer ions in solution compared to potash alum, resulting in a lower vant Hoff factor value.
- Carnalite: Carnalite is a mineral composed of potassium chloride and magnesium chloride hexahydrate. When dissolved in water, it releases potassium ions (K+), magnesium ions (Mg2+), chloride ions (Cl-), and water molecules (H2O). Similar to the previous compounds, it has fewer ions in solution and therefore has a lower vant Hoff factor value.

Potash alum has a higher vant Hoff factor value because it dissociates into a greater number of ions in aqueous solution compared to the other compounds mentioned. This is due to its unique structure as a double salt, which contains multiple ions. As a result, it has a higher conductivity and greater colligative properties, such as boiling point elevation and freezing point depression, when dissolved in water.

In summary, the higher vant Hoff factor value of potash alum in aqueous solution compared to Mohr's salt, potassium ferrocyanide, and carnalite is attributed to its greater dissociation into ions.
Explore Courses for Class 12 exam
Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer?
Question Description
Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Only One Option Correct TypeDirection (Q. Nos. 1-28) This section contains 28 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q. Which has higher van’t Hoff factor value in aqueous solution?a)Potash alumb)Mohr's saltc)Potassium ferrocyanided)CarnaliteCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 12 tests.
Explore Courses for Class 12 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev