1
JEE Main 2021 (Online) 25th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The solubility of AgCN in a buffer solution of pH = 3 is x. The value of x is : [Assume : No cyano complex is formed; Ksp(AgCN) = 2.2 $$\times$$ 10$$-$$16 and Ka(HCN) = 6.2 $$\times$$ 10$$-$$10]
A
1.9 $$\times$$ 10$$-$$5
B
1.6 $$\times$$ 10$$-$$6
C
2.2 $$\times$$ 10$$-$$16
D
0.625 $$\times$$ 10$$-$$6
2
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Arrange the following solutions in the decreasing order of pOH :

(A) 0.01 M HCl
(B) 0.01 M NaOH
(C) 0.01 M CH3COONa
(D) 0.01 M NaCl
A
(B) > (C) > (D) > (A)
B
(A) > (D) > (C) > (B)
C
(A) > (C) > (D) > (B)
D
(B) > (D) > (C) > (A)
3
JEE Main 2020 (Online) 3rd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
100 mL of 0.1 M HCl is taken in a beaker and to it 100 mL of 0.1 M NaOH is added in steps of 2 mL and the pH is continuously measured. Which of the following graphs correctly depicts the change in pH?
A
JEE Main 2020 (Online) 3rd September Evening Slot Chemistry - Ionic Equilibrium Question 60 English Option 1
B
JEE Main 2020 (Online) 3rd September Evening Slot Chemistry - Ionic Equilibrium Question 60 English Option 2
C
JEE Main 2020 (Online) 3rd September Evening Slot Chemistry - Ionic Equilibrium Question 60 English Option 3
D
JEE Main 2020 (Online) 3rd September Evening Slot Chemistry - Ionic Equilibrium Question 60 English Option 4
4
JEE Main 2020 (Online) 3rd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
An acidic buffer is obtained on mixing :
A
100 mL of 0.1 M HCl and 200 mL of 0.1 M CH3COONa
B
100 mL of 0.1 M HCl and 200 mL of 0.1 M NaCl
C
100 mL of 0.1 M CH3COOH and 100 mL of 0.1 M NaOH
D
100 mL of 0.1 M CH3COOH and 200 mL of 0.1 M NaOH
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