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?

A-R; B-S; C-Q; D-P

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A-S; B-R; C-Q; D-P

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A-Q; B-R; C-S; D-P

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A-P; B-S; C-R; D-Q

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Solution

The correct option is A A-R; B-S; C-Q; D-P
Solutions of strong electrolytes has good conductivity and solutions of weak electrolyte has poor conductivity.

$(A) (C_{2} H_{5})_{3} N + C H_{3} C O O H$
$X Y$
(R) Since a weak base is added to a weak acid, the conductivity increases due to formation of the salt triethylammonium acetate and then does not change much after neutralization.

$(B) K I (0.1 M) + A g N O_{3} (0.01 M)$
$X Y$
(S) Due to the formation of solid $A g I$ , the conductivity does not change much initially and once all the $A g N O_{3}$ is consumed then conductivity increases due to the excess $K I$ .

$(C) C H_{3} C O O H + K O H$
$X Y$
(Q) Since a weak acid is added to a strong base, the conductivity decreases due to the consumption of strong base initially and then does not change much after neutralization.

$(D) N a O H + H I$
$X Y$
(P) Since a strong base is added to an acid, the conductivity decreases due to the consumption of strong acid and then after neutralization it increases.

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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 added slowly to an aqueous solution of Y as shown in List 1. The variation in conductivity of these reactions is given in List 2. Match List 1 with List 2 and select the correct answer using the code given below the lists:

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}

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.

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

Q. Match List- I (Flow section type) with List-II (Critical discharge is proportional to) where y is the depth of flow and select the correct answer using the codes given below the lists:

List - I List - II
A. Shallow parabolic 1.

y (z^{3 / 2})

B. Triangular 2.

y^{3 / 2}

C. Rectangular 3.

y^{5 / 2}

D. Trapezoidal 4.

y^{2}

Codes:

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