9.4.3b Sel Elektrolisis (MCQ-Hard)
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Question 1 of 5
1. Question
1 point(s)Satu sel elektrolisis mengandungi campuran larutan 0.1 mol dm⁻³ Cu(NO₃)₂ dan 0.1 mol dm⁻³ AgNO₃ antara berikut yang manakah merupakan hasil utama yang terenap di katod pada peringkat awal proses?
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Question 2 of 5
2. Question
1 point(s)Elektrolisis larutan kuprum(II) sulfat dijalankan menggunakan elektrod karbon dan selepas satu jam didapati warna biru larutan semakin pudar apakah perubahan nilai pH yang dijangkakan berlaku pada elektrolit tersebut?
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Question 3 of 5
3. Question
1 point(s)Dalam proses penulenan kuprum secara industri didapati enapan yang dikenali sebagai enap cemar anod terbentuk di bawah elektrod anod apakah kandungan utama enap cemar tersebut?
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Question 4 of 5
4. Question
1 point(s)Larutan natrium klorida NaCl yang sangat pekat dielektrolisiskan menggunakan elektrod inert mengapakah gas klorin terhasil di anod walaupun nilai E⁰ bagi ion klorida lebih positif daripada ion hidroksida?
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Question 5 of 5
5. Question
1 point(s)Semasa pengekstrakan aluminium melalui proses Hall-Héroult anod karbon perlu diganti secara berkala apakah punca utama hakisan elektrod tersebut?
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