1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Which of the following anions is present in the chain structure of silicates?
A
(Si2O$$_5^{2 - }$$)n
B
(SiO$$_3^{2 - }$$)n
C
SiO$$_4^{4 - }$$
D
Si2O$$_7^{6 - }$$
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
In which of the following molecules are all the bonds are not equal?
A
NF3
B
ClF3
C
BF3
D
AlF3
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following is the most basic oxide?
A
SeO2
B
Al2O3
C
Sb2O3
D
Bi2O3
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
The correct order regarding the electronegativity of hybrid orbitals of carbon is
A
sp < sp2 < sp3
B
sp > sp2 < sp3
C
sp > sp2 > sp3
D
sp < sp2 > sp3

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