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1.
The carbon atom in graphite is:
2.
Boron cannot form which one of the following anions?
3.
If the ionic radii of 
and 
are about 1.34 Å each, then the expected values of atomic radii of 
and 
should be respectively:
and are about 1.34 Å each, then the expected values of atomic radii of and should be respectively:
4.
If 
-axis is the molecular axis, then 
-molecular orbitals are formed by the overlap of
-axis is the molecular axis, then -molecular orbitals are formed by the overlap of
5.
Which one is the weakest bond?
6.
The total number of valency electrons for 
ion is:
ion is:
7.
The ratio of 
and 
-bonds in benzene is:
and -bonds in benzene is:
8.
The geometry of 
molecule is:
molecule is:
9.
Which one of the following linear structure?
(I)
(II)
(III)
(IV)
(V)
(I)
(II)
(III)
(IV)
(V)
10.
According to MO theory, which of the following lists ranks the nitrogen species in terms of increasing bond order?