Tirkashev: Davriy sistema. Yadro reaksiyalari. Kimyoviy bog’lanish

48. p-elektron bulut qanday shaklga ega bo’ladi?

A) Sharsimon

D) Gantelsimon

C)

D)
49. Suv molekulasida bog’lanishlararo burchak nechchiga teng bo’ladi?

A) 100° B) 180°

C) 90° D) 104.5°
50. Bog’lanishlar orasidagi burchak nima deb ataladi?

A) Gibrit burchak

B) O’tkir burchak

C) Valent burchak

D) Inert burchak
51. Atom orbitallarining gibritlanishi haqidagi qoida kimga tegishli?

A) L. Poling B) Lamonosov

C) D. I. Mendeleyev D) Rezerford
52. BeCl₂ va BCl₃ molekulalarining shakli mos ravishda berilgan qatorni toping.

A) Tetraedr, teng tomonli uchburchak

B) Teng tomonli uchburchak, chiziqsimon

C) Chiziqsimon, tedraedr

D) Chiziqsimon, teng tomonli uchburchak
53. Amorf holatni yana qanday nom bilan yuritiladi?

A) Kristall holat B) Plazma holat

C) Shishasimon holat D) Gazsimon holat
54. Fazoviy krustall panjaraning ko’p marta takrorlanib, jismning butun hajmini hosil qiladigan qismi nima deb ataladi?

A) Kristall yacheyka

B) Elementar yacheyka

C) Amorf yacheyka

D) Molekular panjara
55. Kristall panjaralar zarrachalarining fazoda joylashishi va zarrachalar orasidagi o’zaro ta’sir turiga qarab necha turga bo’linadi va ular qaysilar?

A) 4 ta: molekular, atomli, ionli, metal

B) 4 ta: ionli, atomli, kristall, amorf

C) 3 ta: molekular, atomli, ionli

D) 3 ta: ionli, metal, atom
56. quyidagh