1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Alum helps in purifying water by
A
forming Si complex with clay particles
B
sulphate part which combines with the dirt and removes it
C
coagulating the mud particles
D
making mud water soluble
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
In XeF2, XeF4, XeF6 the number of lone pairs of Xe are respectively
A
2, 3, 1
B
1, 2, 3
C
4, 1, 2
D
3, 2, 1
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Which of the following statements is true ?
A
HF is less polar than HBr
B
absolutely pure water does not contain any ions
C
chemical bond formation takes place when forces of attraction overcome the forces of repulsion
D
in covalency transference of electron takes place
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Number of sigma bonds in P4O10 is
A
6
B
7
C
17
D
16
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