1
IIT-JEE 1996
MCQ (Single Correct Answer)
+1
-0.25
Which of the following has the maximum number of unpaired electrons?
A
Mg2+
B
Ti3+
C
V3+
D
Fe2+
2
IIT-JEE 1996
Fill in the Blanks
+1
-0
When N2, the N-N bond distance _____ and when O2 goes to $$O_2^+$$ the O-O bond distance ___.
3
IIT-JEE 1996
MCQ (Single Correct Answer)
+1
-0.25
The number and type of bonds between two carbon atoms in CaC2 are:
A
one sigma ($$\sigma$$) and one pi ($$\pi$$) bonds
B
one sigma ($$\sigma$$) and two pi ($$\pi$$) bonds
C
one sigma ($$\sigma$$) and one and a half pi ($$\pi$$) bonds
D
one sigma ($$\sigma$$) bond
4
IIT-JEE 1996
MCQ (Single Correct Answer)
+1
-0.25
Among the following species, identity the isostructural pairs NF3, $$NO_3^-$$, BF3, H3O+ , HN3
A
[NF3, $$NO_3^-$$] and [BF3, H3O+]
B
[NF3, HN3] and [$$NO_3^-$$, BF3]
C
[NF3, H3O+] and [$$NO_3^-$$, BF3]
D
[NF3, H3O+] and [HN3, BF3]
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