1
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]
2
IIT-JEE 1995 Screening
MCQ (Single Correct Answer)
+1
-0.25
Number of paired electrons in O2 molecules is
A
7
B
8
C
16
D
14
3
IIT-JEE 1995 Screening
MCQ (Single Correct Answer)
+1
-0.25
Which one is most ionic
A
P2O5
B
CrO3
C
MnO
D
Mn2O7
4
IIT-JEE 1993
MCQ (Single Correct Answer)
+1
-0.25
Pick out the isoelectronic structures from the following
I. $$CH_3^+$$
II. $$H_3O^+$$
III. $$NH_3$$
IV. $$CH_3^-$$
A
I and II
B
III and IV
C
I and III
D
II, III and IV
JEE Advanced Subjects