Tardigrade
Tardigrade - CET NEET JEE Exam App
Exams
Login
Signup
Tardigrade
Question
Chemistry
How many of the following are optically inactive? i. trans- [ Co ( en )2( NH 3) Cl ]2+ ii. cis- [ Co ( en )2 Br 2]+ iii. cis- [ Co ( NH 3)3 Cl 3] iv. trans- [ Co ( NH 3)4 Cl 2]+ v. trans- [ CoCl 2( C 2 O 4)2]3-
Q. How many of the following are optically inactive?
i. trans-
[
C
o
(
e
n
)
2
(
N
H
3
)
Cl
]
2
+
ii. cis-
[
C
o
(
e
n
)
2
B
r
2
]
+
iii. cis-
[
C
o
(
N
H
3
)
3
C
l
3
]
iv. trans-
[
C
o
(
N
H
3
)
4
C
l
2
]
+
v. trans-
[
C
o
C
l
2
(
C
2
O
4
)
2
]
3
−
1574
164
Coordination Compounds
Report Error
Answer:
4
Solution:
Complexes
(
i
)
,
(
iii
)
,
(
i
v
)
and
(
v
)
are optically inactive, due to the presence of plane of symmetry.