Post Utme Esut 2023 Chemistry Question 13

Practice objective / multiple choice question 13 from the 2023 Post Utme Esut Chemistry examination.

Post Utme Esut 2023 Chemistry Objective / Multiple Choice
Question 13 POST_UTME_ESUT • 2023 • CHEMISTRY • objective

A solution containing 0.1 M Fe2+ ions is mixed with a solution containing 0.1 M SCN- ions. Calculate the concentration of the complex ion [Fe(SCN)6]4- formed after the reaction is complete.

Answer Options

A. \( K = \frac{[Fe\( SCN \ \)_6]^{4-}}{[Fe^{2+}] [SCN^-]^6} )
B. \( K = \frac{[Fe\( SCN \ \)_6]^{4-}}{[Fe^{2+}] [SCN^-]^3} )
Correct Answer C. \( K = \frac{[Fe\( SCN \ \)_6]^{4-}}{[Fe^{2+}] [SCN^-]^2} )
D. \( K = \frac{[Fe\( SCN \ \)_6]^{4-}}{[Fe^{2+}] [SCN^-]^5} )
Correct Answer
C
Correct Option:
\( K = \frac{[Fe\( SCN \ \)_6]^{4-}}{[Fe^{2+}] [SCN^-]^2} )

About This Question

This is Post Utme Esut 2023 Chemistry Question 13. It is one of the objective questions from the 2023 Post Utme Esut Chemistry examination.

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