1. 1-Mavzu;atom tarkibi 1

59Quyidagi birikmalarning qaysi birida donor-akseptor bog' mavjud?
A) CaS B) CH₄ C) CO₂ D) NH₄CI
60 Proton bilan suv molekulasi birikganda hosil bo'lgan yangi bog' tabiati qanday?
A) kovalent B) ionC) donor-akseptor D) vodorod bog‘
61 Keltirilgan birikmalarning qaysi birida atomlar o'zaro donor-akseptor bog‘-orqali bog’langan?
A) H₂O B) Mg(OH)₂C) C₂H₆ D) [Cu(NH₃)₄]CI₂
62Agar kimyovjy bog’ hosil bo'lishda juftlashmagan elektronlardan tashqari shu elementning bo'linmagan elektron jufti bilan ikkinchi elementning tashqi energetik qavatning bo'sh orbitali ishtirok etsa, hosil bo'lgan bog'ning nomi:
A) vodorod bog'B) kovalent bog'C) donor-akseptor mexanizmi bo'yicha kovalent bog'
D) ion bog'
63 Qanday moddalar suvda eritilganda, donor-akseptor bog' hosil bo'lishi mumkin?
1) karbonat angidrid; 2) ammiak; 3) vodorod xlorid; 4) bor florid; 5) vodorod bromid;
6)oltingugurt (IV) oksid.
A) 1,3, 4, 6 B) 1,3, 5, 6C) 1,2, 3, 5 D) 2, 3, 4, 5
64 lonlar orasida NH₄⁺ , H₃O⁺ lar mavjud, lekin CH₅ bo'la olmasligi sababini aniqlang.