K imyo Ergashev Botirjon

A) 129, 160 B) 128, 128
C) 192,192 D) 130, 192

20. 59,24% li (p=1,49g/sm³) sulfat kislota eritmasining normal konsentratsiyasini aniq-lang.

A) 18 B) 9 C) 27 D) 36

21. AlPO₄ ning ekvivalent massasini aniqlang.

A)64 B) 66.67 C) 122 D) 40,67

22. Kuchsiz asos bilan kuchsiz kislotadan hosil bo'lgan tuz gidrolizga uchraganda, gidrolizda qanday ionlar qatnashadi va muhit qanday bo'ladi?

A) tuzning kationi; muhit ishqoriy
B) tuzning anioni; muhit kislotali
*C) tuzning kationi ham, anioni ham; muhit neytral
D) tuzning kationi; muhit kislotali

23. Quyidagi reaksiyalarning qaysilarida hajm va temperaturaning kamayishi muvoza-natni bir xil tomonga siljitadi?

1. N2(g) + O2(g) = 2NO(g) – Q
2. CO2(g) + C(g) = 2CO(g) – Q
3. 2CO(g) + O2(g) = 2CO2(g) + Q
4. CO(g) + H2O(g) = CO2(g) + H2(g) + Q
5. 2SO2(g) + O2(g) = 2SO3(g) + Q
A) 1,2,3 B) 2,3,4 C) 2,3,5 D) 3,4,5

24. Rux xloratning 33°dagi eruvchanligi 75 ga teng. Shu eritmadagi tuzning konsentratsiya-sini (%) aniqlang?

A) 51,5 B) 56 C) 42,85 D) 25,6

25. 120 gramm LiOH 250 gramm suvda eritildi Hosil bo’lgan eritmasining molyal konsentratsiyasini toping.

A) 23,4 B) 30 C) 20 D) 9,75

26. Gomolog so`zining ma`nosi nima?

A) aktiv B) o`xshash
C) passiv D) noyo`nalish

27. Zanjir reaksiyalar sxemasini ishlab chiq-qan olim?

A) Butlerov B) Vyoler
C) Vyurs D) Semyonov

28. Berseliusning fanga olib kirgan terminlari qaysilar?

A) Kataliz; allortopiya; izomeriya; ekvivalent
B) Izomeriya; allortopiya; kataliz; elektroliz
C) Gidroliz; kataliz; allortopiya; elektroliz
D) Organik kimyo; izomeriya; allortopiya; kataliz

29. Quydagi moddalarning qaysi moddalar-ning tarkibida uchrashiga qarab juftlab ajrating.

1.karam bargi 2. petrushka bargi
3. qarag’ay daraxti 4. Bazi gullarning mumi
a-C₇H₁₆, b-C₂₉H_60, c-C₂₀H_42, d-C₂₇H_56, f-C₂₈H₅₈
A) 1-c, 2-b, 3-a, 4-d,f B) 1-a, 2-b, 3-c,f, 4-d
C) 1-b, 2-c, 3-a, 4-d,f D) 1-c, 2-b, 3-a,f 4-d

30. 0,5 M li 3 litr eritmada necha mol modda mavjud?

A) 2 B) 3 C) 1,5 D) 0,6