🛠️ JEE🧪 Chemistry

Indicate the complex/complex ion which did not show any geometrical isomerism: [JEE Main 2021, 26 Aug (Shift 2)]

Q1

Indicate the complex/complex ion which did not show any geometrical isomerism:

[JEE Main 2021, 26 Aug (Shift 2)]

a

\(\left[ Co \left( NH _3\right)_3\left( NO _2\right)_3\right]\)

b

\(\left[ CoCl _2( en )_2\right]\)

c

\(\left[ Co \left( NH _3\right)_4 Cl _2\right]^{+}\)

d

\(\left[ Co ( CN )_5( NC )\right]^{3-}\)

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