Sana: 1- nazorat ishi Nazorat shakli: Yozma ish

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O’quvchi bahosi :
SANA:
Nazorat ishi- 5
1. Elektrolitik dissosilanish nazariyasini kim kashf etgan?
A. Kablukov B. Arrenius S. Kolbe D. Vyoler
2.Kuchli elektrolitlar berilgan qatorni belgilang.
A. Sulfat, nitrit, fosfat B. Bromid, nitrit, sianid S. Xlorid, ftorid, Perxlorat
D. Nitrit, fosfat, karbonat
3.Dissosilanish darajasi 98 % ga teng bo’lgan elektrolitning 120 ta
molekulasining nechtasi dissosilanishi mumkin. A. 114 B. 94 S. 104 D. 84
4. Qaysi tuzlar gidrolizga uchramaydi? 1) MgCl2; 2) NaNO3; 3) K2CO3; 4)
ZnCl2; 5) NaCl; 6) KCN; 7) Al2(SO4)3; 8) Na2SO4.
A) 2, 5, 8 ; B) 1, 4, 7; C) 2, 6; D) 2, 3, 8.
5. Qaysi moddalar kuchsiz elektrolit hisoblanadi? 1) vodorod ftorid; 2) nitrit
kislota; 3) kaliy karbonat; 4) natriy gidrokarbonat; 5) ammoniy gidrok sid; 6)
ammoniy sulfat. A) 3, 4, 6 ; B) 2, 3; C) 1, 5 ; D) 1, 2, 5.
6. Ayuminiy sulfat molekulasidagi ionlar sonini toping A. 3 B 4 S. 5 D
7. Qaysi tuzlar faqat kation bo‘yicha gidrolizga uchraydi? 1) Na2CO3;
2) AlCl3; 3) CH3COONH4. 4) ZnCl2; 5) (NH4)2SO4; 6) CH3COOK; 7)
Zn(NO3)2; 8) NaCN
A) 1, 6, 8; B) 2, 4, 5, 7; C) 3, 8 D) 2, 3, 4, 7.
8. Quyidagi birikmalardan ham kation, ham anion bo‘yicha gidrolizga uchraydiganlarini aniqlang. 1) natriy sulfat; 2) ammoniy atsetat; 3)litiy nitrat;
4) ammoniy karbonat; 5) kaliy xlorid. A) 4, 5; B) 1, 3, 5; C) 1, 2, 5; D) 2, 4.
9 . Qaysi tuzlar faqat anion bo‘yicha gidrolizga uchraydi? 1) ZnCl2; 2)
(CH3COO)2 Ca; 3) (NH4)2SO4; 4) KCN; 5) K2SO3; 6) NH4Cl; 7)Zn(NO3)2
A) 2, 4, 5; B) 1, 3, 6, 7 ; C) 2, 4, 5, 6; D) 1, 3, 7.
10. Agar modda molekulalarining dissosianish darajasi 15 % ga teng
bo’lsa, 120 ta molekuladan qanchasi dissosilangan bo’ladi. A.6 B. 14 S. 7 D. 12
11.Agar 96 ta molekuladan 6 tasi dissosilansa, , elektrolitning
dissosilanish darajasi (%) qanchaga teng bo’ladi. A. 2,05 B. 3,10 S. 6,25 D.12,75
12.Yil davomida odam 7 lg osh tuzi iste’mol qilganda, har kuni qabul
qiladigan xlorid ionlarining massasi qancha bo’ladi. A. 11,6 B. 12,1 S.22,2 D. 10,7
13. Tuzlarning dissotsiatsiyalanishidan hosil bo‘lgan ionlarni suv bilan
o‘zaro ta’sirlashuvidan kuchsiz elektrolitning hosil bo‘lishi nima deb ataladi
A. Elektroliz B. Gidroliz S. Gidrofil D. Elektrofil
14. Kaliy karbonat ( Potash ) gidrolizga uchratilganda eritma muhiti qanday bo’ladi.
A. Ishqoriy B. Kislotali S. Neytral D. To;g;ri javob yo’q
15. Qaysi tuz eriganda, muhit neytral bo’ladi
A. ammoniy sulfat B. natriy sulfit S. natriy karbonat D. natriy sulfat
16.Dissosilanish darajasi qaysi belgi bilan ifodalanadi____________________
17. Gidroliz so’zining ma’nosi _________________________________________
18. Gidrolizga uchramaydigan tuzlarga misollar keltiring ________________
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19. Kuchsiz kislota bilan kuchsiz asosdan hosil bo’lgan tuz gidrolizga
uchratilganda, gidrolizga qanday ionlar qatnashadi va muhit qanday
bolishi mumkin_______________________________________________________
20. Temir (III) sulfat qanday muhitga ega?