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1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Hydrogen ion concentration in mol / L in a solution of pH = 5.4 will be :
A
3.98 $$\times$$ 10-6
B
3.68 $$\times$$ 10-6
C
3.88 $$\times$$ 106
D
3.98 $$\times$$ 108
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
What is the conjugate base of OH-?
A
O2
B
H2O
C
O-
D
O-2
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The conjugate base of H2PO4- is :
A
$$PO_4^{3-}$$
B
$$HPO_4^{2-}$$
C
H3PO4
D
P2O5
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The molar solubility (in ol L-1) of a sparingly soluble salt MX4 is "s". The corresponding solubility product is Ksp. 's' is given in term of Ksp by the relation :
A
s = (256 Ksp)1/5
B
s = (128 Ksp)1/4
C
s = ( Ksp / 128)1/4
D
s = (Ksp / 256)1/5
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