1
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following compound CANNOT act as a Lewis base?
A
SF4
B
NF3
C
ClF3
D
PCl5
2
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The solubility of Ca(OH)2 in water is :

[Given : The solubility product of Ca(OH)2 in water = 5.5 $$\times$$ 10$$-$$6]
A
1.11 $$\times$$ 10$$-$$6
B
1.11 $$\times$$ 10$$-$$2
C
1.77 $$\times$$ 10$$-$$6
D
1.77 $$\times$$ 10$$-$$2
3
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
4
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)
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