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
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12