Kimyo bakalavr) 2021-2022 o’quv yili I semester uchun II kurs (III semestr) namangan – 2021

[Hg₂]²⁺ ionlarning reaktsiyalari

1. 
   NaOH va KOH o’yuvchi ishqorlar [Hg₂]²⁺ bilan reaktsiyaga kirishib, qora cho’kma holidagi simob (II) – oksidni hosil qiladi:
   

[Hg₂]²⁺ + 2OH^-  Hg₂O↓ + H₂O

2. 
   [Hg₂]²⁺ ni metall holatdagi simobgacha qaytarish.
   

1. 
   Bir tomchi simob (II) tuzi eritmasi ustiga 2-3 tomchi SnCl₂ eritmasidan qo’shilsa, [Hg₂]²⁺ ning metall holdagi simobgacha qaytarilishi tufayli qorayib boruvchi Hg₂Cl₂ oq cho’kma hosil bo’ladi:
   

[Hg₂]²⁺ + 2Cl^-  Hg₂Cl₂

Hg₂Cl₂↓ + Sn²⁺  2Hg↓ + Sn^IV + 2Cl^-

2. 
   Agar Hg₂(NO₃)₂ eritmaning bir tomchisi yaltiroq mis ‘lastinka ustiga (yoki chaqaga) tomizilib bir oz kutilsa, ‘lastinkada simob metalining kul rang dog’i ‘aydo bo’ladi:
   

[Hg₂]²⁺ + Cu↓ = Cu²⁺ + 2Hg↓
Agar chaqaning eritma tekkan joyini suv bilan yuvib, dog’ latta yoki filtr qog’ozi bilan artilsa, u yaltiroq bo’lib qoladi.
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