1
JEE Advanced 2017 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-1
Among the following, the correct statement(s) is (are)
A
$$Al{\left( {C{H_3}} \right)_3}$$ has the three-centre two-electron bonds in its dimeric structure
B
$$B{H_3}$$ has the three-center two-electron bonds in its dimeric structure
C
$$AlC{l_3}$$ has the three-center two-electron bonds in its dimeric structure
D
The Lewis acidity of $$BC{l_3}$$ is greater than that of $$AlC{l_3}$$
2
JEE Advanced 2016 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2
According to Molecular Orbital Theory, which of the following statements is(are) correct?
A
$$C_2^{2-}$$ is expected to be diamagnetic
B
$$O_2^{2+}$$ expected to have a longer bond length than O2
C
$$N_2^+$$ and $$N_2^-$$ have the same bond order
D
$$He_2^+$$ has the same energy as two isolated He atoms
3
JEE Advanced 2016 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2
The compound(s) with TWO lone pairs of electrons on the central atom is(are)
A
BrF5
B
ClF3
C
XeF4
D
SF4
4
JEE Advanced 2015 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2
When O2 is adsorbed on a metallic surface, electron transfer occurs from the metal to O2. The true statement(s) regarding this adsorption is(are)
A
O2 is physisorbed
B
Heat is released
C
Occupancy of $$\pi _{2p}^*$$ of O2 is increased
D
Bond length of O2 is increased
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