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Qaysi molekuladagi bog'ning qutbliligi kamroq? A) magniy oksid B) berilliy oksid C) stronsiy oksid D) kalsiy oksid 9
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Bog`lanish 61937
8.Qaysi molekuladagi bog'ning qutbliligi kamroq?
A) magniy oksid B) berilliy oksid C) stronsiy oksid D) kalsiy oksid
A) HCl B) VF5 C) WF6 D) SF6 10.Kovalent bog‘ning qutbliligi kamayib boradigan qatorni ko‘rsating. A) PH3, PCl3, PF3 B) H2O, H2S, HF C) HCl, HI, HBr D) CF4, CCl4, CBr4
A) kremniy ftorid B) fosfor(V)ftorid C) ftor oksid D) brom(V)ftorid
A) NBr3 B) I2 C) NCl3 D) PCl3 E) NH3 13.Kimyoviy bog‘ning uzunligi kattaroq bo‘lgan molekulani ko‘rsating. A) brom B) vodorod yodid C) yod D) kislorod 14.Quyidagi moddalarni bog‘lanish energiyasi ortib borish tartibida joylashtiring. 1. azot; 2. vodorod; 3. kislorod; 4. xlor; A) 1,2,4,3 B) 1,3,2,4 C) 2,4,3,1 D)4,2,3,1
CH4 – SiH4 – GeH4 – SnH4 – PbH4 A) ortib boradi B) kamayib boradi C) o‘zgarmaydi D) metallmaslarnikida ortib boradi, metallarnikida kamayib boradi 16.Quyidagi gaz holdagi vodorodli birikmalarning turg‘unligi keltirilgan qatorda qanday o‘zgaradi? CH4 – SiH4 – GeH4 – SnH4 – PbH4 A) ortib boradi B) kamayib boradi C) o‘zgarmaydi D) metallmaslarnikida ortib boradi, metallarnikida kamayib boradi
Na(1,01), K(0,91), H(2,1), Br(2,87), C(2,5), S(2,6) Oltingugurtning qaysi element bilan hosil qilgan kimyoviy bog‘ida bog‘ qutbliligi yuqoriroq? A) natriyB) vodorod C) kaliy D) uglerod 18.Quyidagi qatorlardagi birikmalarda bog‘ning barqarorligi chapdan o‘ngga qanday o‘zgaradi? 1. NH3 – PH3 – AsH3 – SbH3; 2. CH4 – NH3 – H2O – HF; 3. HF – HCl – HBr – HJ ; 4. H2O – H2S – H2Se – H2Te; A) 1,3-kamayadi; 2,4-kuchayadi B) 1,3,4-kamayadi; 2-kuchayadi C) 1,2-kamayadi;3,4-kuchayadi D) 2-kamayadi; 1,3,4-kuchayadi
A) CH4 B) HCl C) H2S D) CH3COOH 20.Quyidagi moddalar orasida eng kam qutblangan kovalent bog‘lanishli molekulani toping. A) CH4 B) NH3 C) PH3 D) H2S ****************************************
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