1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The metal extracted by leaching with a cyanide is
A
Mg
B
Ag
C
Cu
D
Na
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Aluminium is extracted by the electrolysis of
A
bauxite
B
alumina
C
alumina mixed with molten cryolite
D
molten cryolite
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
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
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
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
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