First slide

Werner's theory

Question

Counter entity of $[Co {({NH}_{3})}_{4} {Cl}_{2}] Cl$ Complex is

Moderate

A

${[Co {({NH}_{3})}_{4} {Cl}_{2}]}^{+ 1}$
B

${NH}_{3}$
C

${Co}^{3 +}$
D

Cl^-

Solution

In the complex formula, the ions outside of the square bracket is/are called counter entity. In $[Co {({NH}_{3})}_{4} {Cl}_{2}] Cl$ counter entity is Cl^-

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