1
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
2
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is not true?
A
pH + pOH = 14 for all aqueous solutions
B
The pH of 1 $$\times$$ 10-8 M HCl is 8
C
96,500 coulombs of electricity when passed through a CuSO4 solution deposits 1 gram equivalent of copper at the cathode
D
The conjugate base of $$H_2PO_4^-$$ is $$HPO_4^{2-}$$
3
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
The solubility in water of a sparingly soluble salt AB2 is 1.0 $$\times$$ 10-5 mol L-1. Its solubility product number will be :
A
4 $$\times$$ 10-10
B
1 $$\times$$ 10-15
C
1 $$\times$$ 10-10
D
4 $$\times$$ 10-15
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
When rain is accompanied by a thunderstorm, the collected rain water will have a pH value :
A
slightly higher than that when the thunderstorm is not there
B
uninfluenced by occurence of thunderstorm
C
which depends on the amount of dust in air
D
slightly lower than that of rain water without thunderstorm

JEE Main Subjects

Browse all chapters by subject