An aqueous solution of X is added slowly to an aqueous solution of Y as shown in List I- The variation in conductivity of these reactions is given in List II- Match list I with List II and select the correct answer- beginarray -1- 1-WhineList I-List IINMhineP- x C - 2 H - 5- 3 N - lunderset y CH - 3 COOH - 1 - - Conductivity decreases - and - then increases 1Q- N-underset x0-1 M - Aglunderset y NO - 30-01 M - 2 - - Conductivity - decreases - and - then - does - not - change - much lend array A- P -4- Q -3- R -2- S -1B- P -3- Q -4- R -2- S -1C- P -2- Q -3- R -4- S -1D- P -1- Q -4- R -3- S -2

The correct option is B P 3, Q 4, R 2, S 1 (P) x(C_2 H_5 )_3 N+CH_3 yCOOH→ (C_2 H_5 )_3 NH^+ CH_3 COO^ Initially conductivity increases because on neutraliz ...

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Standard XII

Chemistry

Conductivity of Ionic Solutions

An aqueous so...

Question

An aqueous solution of X is added slowly to an aqueous solution of Y as shown in List I. The variation in conductivity of these reactions is given in List II. Match list I with List II and select the correct answer.

$\begin{matrix} L i s t I & L i s t I I P . (C_{2} H_{5})_{3} N x + C H_{3} C O O H y & 1. C o n d u c t i v i t y d e c r e a s e s a n d t h e n i n c r e a s e s Q . K I (0.1 M) x + A g N O_{3} y (0.01 M) & 2. C o n d u c t i v i t y d e c r e a s e s a n d t h e n d o e s n o t c h a n g e m u c h R . C H_{3} C O O H X + K O H y & 3. C o n d u c t i v i t y i n c r e a s e a n d t h e n d o e s n o t c h a n g e m u c h S . N a O H x + H I y & 4. C o n d u c t i v i t y d o e s n o t c h a n g e m u c h a n d t h e n i n c r e a s e s \end{matrix}$

P-3, Q-4, R-2, S-1

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P-4, Q-3, R-2, S-1

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P-2, Q-3, R-4, S-1

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P-1, Q-4, R-3, S-2

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Solution

The correct option is A
P-3, Q-4, R-2, S-1

(P) $(C_{2} H_{5})_{3} x N + C H_{3} C O O H y \to (C_{2} H_{5})_{3} N H^{+} C H_{3} C O O^{-}$
Initially conductivity increases because on neutralization ions are created. After that it becomes practically constant because X alone cannot form ions.
(Q) $K I (0.1 M) + A g N O_{3} (0.01 M) \to A g I ↓ + K N O_{3}$
Number of ions in the solution remains constant as only $A g N O_{3}$ precipitated as AgI. Thereafter conductance increases due to increase in number of ions.
(R) Initially conductance decreases due to the decrease in the number of OH ions as $O H^{-}$ is getting replaced by $C H_{3} C O O^{-}$ which has poorer conductivity thereafter it slowly increase in number of $H^{+}$ ions.
(S) Initially it decreases due to decrease in $H^{+}$ ions and then increases due to the increase in $O H^{-}$ ions.

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Similar questions

Q. An aqueous solution of X is added slowly to an aqueous solution of Y as shown in List I. The variation in conductivity of theses reactions is given in List II. Match List I with List II and select the correct using the code given below the lists:

List-A	List-B
(P) $(C_{2} H_{5})_{3} N X + C H_{2} C O O H Y$	(1) Conductivity decreases and then increases
(Q) $K I (0.1 M) X + A g N O_{3} (0.01 M) Y$	(2) Conductivity decreases and then does not change much
(R) $C H_{2} C O O X + K O H Y$	(3) Conductivity increases and then does not change much
(S) $N a O H X + H I Y$	(4) Conductivity does not change much and then increases.

Q. An aqueous solution of X is is added slowly to an aqueous solution of Y as shown in Column I. The variation in conductivity of these reactions is given in Column II. Match Column I with Column II and select the correct answer using the codes given below the Columns.

\begin{matrix} C o l u m n I & C o l u m n I I P . (C_{2} H_{5})_{3} X N + C H_{3} C O O H Y & 1. C o n d u c t i v i t y d e c r e a s e s a n d t h e n i n c r e a s e s Q . K I (0.1 M) X + A g N O_{3} Y (0.01 M) & 2. C o n d u c t i v i t y d e c r e a s e s a n d t h e n d o e s n o t c h a n g e m u c h R . C H_{3} C O O H X + K O H Y & 3. C o n d u c t i v i t y i n c r e a s e s a n d t h e n d o e s n o t c h a n g e m u c h S . N a O H X + H I Y & 4. C o n d u c t i v i t y d o e s n o t c h a n g e m u c h a n d t h e n i n c r e a s e s \end{matrix}

\begin{matrix} C o l u m n I & C o l u m n I I P . (C_{2} H_{5})_{3} X N + C H_{3} C O O H Y & 1. C o n d u c t i v i t y d e c r e a s e s a n d t h e n i n c r e a s e s Q . K I (0.1 M) X + A g N O_{3} Y (0.01 M) & 2. C o n d u c t i v i t y d e c r e a s e s a n d t h e n d o e s n o t c h a n g e m u c h R . C H_{3} C O O H X + K O H Y & 3. C o n d u c t i v i t y i n c r e a s e s a n d t h e n d o e s n o t c h a n g e m u c h S . N a O H X + H I Y & 4. C o n d u c t i v i t y d o e s n o t c h a n g e m u c h a n d t h e n i n c r e a s e s \end{matrix}

Q. An aqueous solution of X is added slowly to an aqueous solution of Y as shown in List I. The variation in conductivity of these reactions is given in List II. Match List I with List II and select the correct option using the code given below the lists:

\begin{matrix} List I & List II (A) (C_{2} H_{5})_{3} N + C H_{3} C O O H & (P) Initially conductivity decreases and then increases X Y (B) K I (0.1 M) + A g N O_{3} (0.01 M) & (Q) Initially conductivity decreases and then does not change much X Y (C) C H_{3} C O O H + K O H & (R) Initially conductivity increases and then does not change much X Y (D) N a O H + H I & (S) Initially conductivity does not change much and then increases X Y \end{matrix}

Which of the following is the only correct combination?

Q. List-II gives distance between pair of points given in List-I, match them correctly.

\begin{matrix} L i s t - I & L i s t I I (P) & (- 5, 7), (- 1, 3) & (1) & 5 (Q) & (5, 6), (1, 3) & (2) & \sqrt{8} (R) & (\sqrt{3} + 1, 1), (0, \sqrt{3}) & (3) & \sqrt{6} (S) & (0, 0), (- \sqrt{3}, \sqrt{3}) & (4) & 4 \sqrt{2} \end{matrix}

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