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MCQEasyJEE Main 2024 · 31 January, Shift 1Equilibrium Basics

Chemistry Question from JEE Main 2024 · 31 January, Shift 1

For the given reaction, choose the correct expression of KCK_C from the following:

Fe(aq)3++SCN(aq)−⇌(FeSCN)(aq)2+\text{Fe}^{3+}_{(aq)} + \text{SCN}^{-}_{(aq)} \rightleftharpoons \left(\text{FeSCN}\right)^{2+}_{(aq)}
  • A

    KC=[FeSCN2+][Fe3+][SCN−]K_C = \dfrac{\left[\text{FeSCN}^{2+}\right]}{\left[\text{Fe}^{3+}\right]\left[\text{SCN}^{-}\right]}

  • B

    KC=[Fe3+][SCN−][FeSCN2+]K_C = \dfrac{\left[\text{Fe}^{3+}\right]\left[\text{SCN}^{-}\right]}{\left[\text{FeSCN}^{2+}\right]}

  • C

    KC=[FeSCN2+][Fe3+]2[SCN−]2K_C = \dfrac{\left[\text{FeSCN}^{2+}\right]}{\left[\text{Fe}^{3+}\right]^{2}\left[\text{SCN}^{-}\right]^{2}}

  • D

    KC=[FeSCN2+]2[Fe3+][SCN−]K_C = \dfrac{\left[\text{FeSCN}^{2+}\right]^{2}}{\left[\text{Fe}^{3+}\right]\left[\text{SCN}^{-}\right]}

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