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Ionic Equilibrium question bank (Chemistry)

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Q1.

Given is a concentrated solution of a weak electrolyte $A_xB_y$ of concentration 'c' and dissociation constant 'K'. The degree of dissociation is given by :

(A)

$\left[K \times c^{x+y-1} x^x y^y\right]^{x+y}$

(B)

$\left(\dfrac{K}{c^{x+y-1} x^x y^y}\right)^{\frac{1}{x+y}}$

(C)

$\left(\dfrac{c^{x+y-1} x^x y^y}{K}\right)^{x+y}$

(D)

$\left(\dfrac{c^{x+y-1} x^x y^y}{K}\right)^{\frac{1}{x+y}}$

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Q2.

Arrange the following resultant mixtures in increasing order of their pH values
A. $10$ mL $0.2$ M Ca(OH)$_2$ + $25$ mL $0.1$ M HCl
B. $10$ mL $0.01$ M H$_2$SO$_4$ + $10$ mL $0.01$ M Ca(OH)$_2$
C. $10$ mL $0.1$ M H$_2$SO$_4$ + $10$ mL $0.1$ M KOH
Choose the correct answer from the options given below:

(A)

$B \lt C \lt A$

(B)

$C \lt A \lt B$

(C)

$C \lt B \lt A$

(D)

$A \lt C \lt B$

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