1
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+2
-0.5
The common features among the species CN-, CO and NO+ are :
A
bond order three and isoelectronic
B
bond order three and weak field ligands
C
bond order two and $$\pi$$-acceptors
D
isoelectronic and weak field ligands
2
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+2
-0.5
Molecular shape of SF4, CF4 and XeF4 are
A
the same, with 2, 0 and 1 lone pair of electrons
B
the same, with 1, 1 and 1 lone pair of electrons
C
different, with 0, 1 and 2 lone pairs of electrons respectively
D
different, with 1, 0 and 2 lone pairs of electrons respectively
3
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+2
-0.5
The hybridisation of atomic orbitals of nitrogen in $$NO_2^+$$, $$NO_3^-$$ and $$NH_4^+$$ are
A
sp, sp3 and sp2 respectively
B
sp, sp2 and sp3 respectively
C
sp2, sp and sp3 respectively
D
sp2, sp3 and sp respectively
4
IIT-JEE 1999
MCQ (Single Correct Answer)
+2
-0.5
The correct order of increasing C - O bond length of CO, $$CO_3^{2-}$$, CO2 is
A
$$CO_3^{2-}$$ < CO2 < CO
B
CO2 < $$CO_3^{2-}$$ < CO
C
CO < $$CO_3^{2-}$$ < CO2
D
CO < CO2 < $$CO_3^{2-}$$
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