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Pertanyaan

Atom klor mengalami reduksi pada reaksi ....

begin mathsize 14px style left parenthesis 1 right parenthesis space Mg plus 2 HCI space rightwards arrow space MgCl subscript 2 plus straight H subscript 2 space space  left parenthesis 2 right parenthesis space 2 HgCl subscript 2 plus straight C subscript 2 straight O subscript 4 to the power of 2 minus end exponent space rightwards arrow space 2 Cl to the power of minus plus 2 CO subscript 2 plus Hg subscript 2 Cl subscript 2 space space  left parenthesis 3 right parenthesis space MnO subscript 2 plus 4 HCI space rightwards arrow space MnCl subscript 2 plus 2 straight H subscript 2 straight O plus Cl subscript 2 space  left parenthesis 4 right parenthesis space Cl subscript 2 plus 2 KI space rightwards arrow space 2 KCI plus straight I subscript 2 space end style

  1. (1), (2), dan (3) benar

  2. (1) dan (3) benar

  3. (2) dan (4) benar

  4. Hanya (4) yang benar

  5. Semuanya benar

A. Tiara

Master Teacher

Mahasiswa/Alumni Universitas Negeri Semarang

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Pembahasan

begin mathsize 14px style left parenthesis 1 right parenthesis space Mg space plus space 2 HCl space rightwards arrow space MgCl subscript 2 space plus space straight H subscript 2 space semicolon space Cl space tidak space mengalami space  space space space space space perubahan space bilangan space oksidasi. space Pernyataan space left parenthesis 1 right parenthesis space Salah.  left parenthesis 2 right parenthesis space 2 HgCl subscript 2 space plus space straight C subscript 2 straight O subscript 4 to the power of 2 minus end exponent space rightwards arrow space 2 Cl to the power of minus space plus space 2 CO subscript 2 space plus space Hg subscript 2 Cl subscript 2 space semicolon space Cl space  space space space space space tidak space mengalami space perubahan space bilangan space oksidasi. space  space space space space space Pernyataan space left parenthesis 2 right parenthesis space Salah.  left parenthesis 3 right parenthesis space MnO subscript 2 space plus space 4 HCl space rightwards arrow space MnCl subscript 2 space plus space 2 straight H subscript 2 straight O space plus space Cl subscript 2 space semicolon space Cl space mengalami space  space space space space space kenaikan space bilangan space oksidasi space dari space short dash 1 space menjadi space 0 space left parenthesis oksidasi right parenthesis. space  space space space space space Pernyataan space left parenthesis 3 right parenthesis space Salah.  left parenthesis 4 right parenthesis space Cl subscript 2 space plus space 2 KI space rightwards arrow space 2 KCl space plus space straight I subscript 2 space semicolon space Cl space mengalami space penurunan space  space space space space space bilangan space oksidasi space dari space 0 space menjadi space short dash 1 space left parenthesis reduksi right parenthesis. space  space space space space space Pernyataan space left parenthesis 4 right parenthesis space Benar. end style

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Atom klor mengalami reduksi pada reaksi ....  1.Mg+2HCl2.2HgCl2​+C2​O42−​3.MnO2​+4HCl4.Cl2​+2KI​→→→→​MgCl2​+H2​2Cl−+2CO2​+Hg2​Cl2​MnCl2​+2H2​O+Cl2​2KCl+I2​​  (SBMPTN 2015)

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