How does the concentration of hydroxyl ions change when excess base is removed from a solution of NaOH?
a. decreases b. increases c. does not change d. none of these

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Solution

Concentration of hydroxyl ions will decrease.

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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}

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. In a situation of constant demand, equilibrium quantity does not change even when supply increases or decreases.

Q. Assertion :When the aqueous solution of

{C H}_{3} C O O {N H}_{4}

is diluted, then its degree of hydrolysis does not change. Reason: It is the salt of a weak acid and a weak base hence its degree of hydrolysis does not depend on the concentration.

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How does the concentration of hydroxyl ions change when excess base is removed from a solution of NaOH?a. decreases b. increases c. does not change d. none of these

Concentration of hydroxyl ions will decrease.

How does the concentration of hydroxyl ions change when excess base is removed from a solution of NaOH?
a. decreases b. increases c. does not change d. none of these