Kimyoviy bog‘lanish

96-8son-100.
7. Sirka va ortofosfat kislotalar suvda eriganda nechta kimyoviy bog‘lari geterolitik parchalanadi, ya’ni elektrolitik dissotsilanadi?
A) 1 va 1 B) 4 va 3 C) 1 va 2 D) 4 va 1 E) 1 va 3
96-10son-19.
8. Eritma konsentratsiyasining ortishi natijasida kuchsiz elektrolitlarning dissotsilanish darajasi qanday o‘zgaradi?
A) ortadi B) kamayadi C) ortadi, so‘ngra kamayadi
D) kamayadi, so‘ngra ortadi
E) o‘zgarmaydi
96-10son-33.
9. Dissotsilanish darajasi qanday omillarga bog‘liq?
1) temperatura 2) konsentratsiyaga
3) erituvchi tabiatiga 4) erigan modda tabiatiga
A) 1,2,3 B) 1,3,4 C) 3,4 D) 2,3,4 E) 1,2,3,4
02-9son-52.
10. Qaysi modda yordamida sulfat ionini aniqlash mumkin?
1) NaCI 2) NH₄CI 3) BaCI₂ 4) FeCI₃
A) 1 va 2 B) 2 C) 1 D) 4 E) 3
96-10son-37.
11. Xlorid kislota va natriy ishqor eritmalari teng miqdorda olinib aralashtirilganda, quyidagi xossalardan qaysi biri saqlanib qoladi?
1) kislotalik 2) asoslilik 3) elektr o‘tkazuvchanlik 4) kislota va asoslilik
5) dissotsilanish
A) 2,4 B) 1,5 C) 3 D) 1,2 E) 4
02-10son-11.
12. Quyidagi qatorlardan qaysi biri kuchsiz elektrolitlar qatori?
A) Fe(OH)₃, KNO₃, HNO₃, Zn(OH)₂
B) HCI, MgSO₄, Mn(OH)₂, NaOH
C) NH₄OH, AI(OH)₃, H₂S, HNO₂
D) HNO₃, Pg(OH)₂, H₃PO₄, CH₃COOH
E) NaOH, Cu(OH)₂, MnSO₄, H₂O
96-13son-85.
13. Qaysi qator faqat kuchsiz elektrolitlardan tashkil topgan?
A) Fe(OH)₃, CH₃COOH, H₂SO₃, Cr(OH)₃
B) NaCI, CH₃COOH, H₂SO₄, Co(OH)₂
C) AI(OH)₃, KNO₃, H₂S, NH₄CI
D) NH₄SI, H₂CO₃, Fe(NO₃)₂, Zn(OH)₂
E) Pb(OH)₂, HCOOH, KNO₃, NaOH