Q4. Match List - I with List - II.
List - I
(A) Λm of KCl increases on dilution
(B) Λm of CH3COOH in

Q: What is the correct answer for CUET UG Chemistry Q4?

The correct answer is B. A. Molar conductance (Λm) of KCl (strong electrolyte) increases slowly on dilution due to weakening of inter-ionic attractions and increased ionic mobilities. So (A) -> (IV).B. Λm of CH3COOH (weak electrolyte) increases significantly on dilution due to increased degree of ionisation. So (B) -> (III).C. For strong electrolytes, Λm versus (molarity)^1/2 (square root of concentration) yields a linear

Q: Q4. Match List - I with List - II. List - I (A) Λm of KCl increases on dilution (B) Λm of CH3COOH increases on dilution (C) Λm of KCl versus (molarity) (D) Λm of CH3COOH versus (molarity)1/2 List -…

The correct answer is B. A. Molar conductance (Λm) of KCl (strong electrolyte) increases slowly on dilution due to weakening of inter-ionic attractions and increased ionic mobilities. So (A) -> (IV).B. Λm of CH3COOH (weak electrolyte) increases significantly on dilution due to increased degree of ionisation. So (B) -> (III).C. For strong electrolytes, Λm versus (molarity)^1/2 (square root of concentration) yields a linear

Q: What are the options for this CUET UG Chemistry question?

A. (a) (A)-(I), (B)-(II), (C)-(III), (D)-(IV) · B. (b) (A)-(IV), (B)-(III), (C)-(I), (D)-(II) · C. (c) (A)-(III), (B)-(IV), (C)-(II), (D)-(1) · D. (d) (A)-(II), (B)-(III), (C)-(IV), (D)-(I)

Question

Q4. Match List - I with List - II.
List - I
(A) Λm of KCl increases on dilution
(B) Λm of CH3COOH increases on dilution
(C) Λm of KCl versus (molarity)
(D) Λm of CH3COOH versus (molarity)1/2
List - II
(I) is a linear graph
(II) is a non-linear graph
(III) Due to increased degree of ionisation
(IV) Due to weakening of interionic attractions
Choose the correct answer from the options given below:
(a) (A)-(I), (B)-(II), (C)-(III), (D)-(IV)
(b) (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
(c) (A)-(III), (B)-(IV), (C)-(II), (D)-(1)
(d) (A)-(II), (B)-(III), (C)-(IV), (D)-(I)

FirstInTest · Accepted Answer

A. Molar conductance (Λm) of KCl (strong electrolyte) increases slowly on dilution due to weakening of inter-ionic attractions and increased ionic mobilities. So (A) -> (IV).B. Λm of CH3COOH (weak electrolyte) increases significantly on dilution due to increased degree of ionisation. So (B) -> (III).C. For strong electrolytes, Λm versus (molarity)^1/2 (square root of concentration) yields a linear graph (Debye-Huckel-Onsager equation). If plotted against (molarity), it's generally not linear, but the solution maps (C) to (I) 'is a linear graph'. This implies it refers to Λm vs √C, or a general linear trend at high dilutions.D. Λm of CH3COOH (weak electrolyte) versus (molarity)^1/2 is a non-linear graph (as it doesn't follow Debye-Huckel-Onsager equation for weak electrolytes). So (D) -> (II).Therefore, the correct match is (A)-(IV), (B)-(III), (C)-(I), (D)-(II).

Answer

(a) (A)-(I), (B)-(II), (C)-(III), (D)-(IV)

Answer

(b) (A)-(IV), (B)-(III), (C)-(I), (D)-(II)

Answer

(c) (A)-(III), (B)-(IV), (C)-(II), (D)-(1)

Answer

(d) (A)-(II), (B)-(III), (C)-(IV), (D)-(I)

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