NEET UG CHEMISTRY MCQ: CO-ORDINATION COMPOUNDS

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Analyzing +4 | -1

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A :

{\left[ {CoCl{{\left( {N{H_3}} \right)}_5}} \right]^{2 + }}

absorbs at lower wavelength of light with respect to

{\left[ {Co{{\left( {N{H_3}} \right)}_5}\left( {{H_2}O} \right)} \right]^{3 + }}

Reason R : It is because the wavelength of the light absorbed depends on the oxidation state of the metal ion.

In the light of the above statements, choose the correct answer from the options given below :

View answer and explanation

Correct option: A

A is false but R is true

Assertion A is false but Reason R is true. The ligand affects the wavelength absorbed, not the oxidation state directly, making the assertion incorrect, but the reason correctly states that the oxidation state influences the absorbed wavelength.

NEET UG CHEMISTRY MCQ: CO-ORDINATION COMPOUNDS

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