Kimyofaniningvazifalarivarivojlanishi,O’zbekistonlik kimyogarolimlarningkimyofanigaqo’shganhissalari,moddavauning xossalari,sofmoddavaaralashmamavzulariyuzasidantestlar

1	2	3	4	5	6	7	8	9
10
B	D	A	A	B	D	D	D	C	A
11	12	13	14	15	16	17	18
C	B	A	C	D	B	A	A

19.Moddaningerishqobilyati
20.Ayniharoratdaeruvchimoddadanortiqchaeritaolmaydiganeritma
21.33,6g
22.0,564
23.38g
24.27,35·10⁸
25.Ortadi


Eritmalar.Eritmadaeriganmoddaningmassaulushi,foiz,molar
vanormalkonsentrasiya.Eritmalarningahamiyati

1.Eritmalaragregatholatigaqarabnechaxilbo’ladi?

A)2 B)3 C)4 D)5
2.Konsentrlanganeritmanima?
A)eritmadaeriganmoddamiqdorijudaozbo’lsaB)eritmadaeriganmoddamiqdori
yetarlichayuqoribo’lsaC)100gerituvchida0,001gdankamerisaD)ayniharoratda
to’yinganeritmadamavjuderiganmoddadankammiqdorinitutuvchieritma

44

3.Eritmadaeriganmoddaningmassaulushiqandayformulaorqalitopiladi?
A)w=m1/m2 B)C%=m1/m2∙100% C)CM=m∙1000/M∙V D)CN=m∙1000/E∙V
4.Foizkonsentratsiyaqandayformulaorqaliifodalanadi?
A)CM=m∙1000/M∙V B)C%=m1/m2∙100% C)N1V1=N2V2 D)w=m1/m2
5.CN=m∙1000/E∙Vushbuformulaqandayqonuniyatniifodalaydi?
A)Foizkonsentrasiya B)MolarkonsentratsiyaC)NormalkonsentratsiyaD)Massa
ulush

6.“Reaksiyaga kirishayotgan moddalareritmalarining hajmlariularning normal konsentatsiyalaiqiymatigateskariproporsionaldir”ushbuqonuniyatqaysiformula orqaliifodalanadi?

A)CN=m∙1000/E∙V B)CM=C%∙p∙10/M C)w=m1/m2 D)N1V1=N2V2

7.200gsuvda40goshtuzieritildi.Eritmadaerigantuzningmassaulushinitoping. A)0,2 B)0,34 C)0,18 D)0,17

8.150geritmatarkibida23gkalsiyxloriderigan.Eritmadagikalsiyxloridningmassa ulushinitoping.

A)0,153 B)0,133 C)0,18 D)0,23

9.300g15%likaliyxlorideritmasinitayyorlashuchunnechagtuzvasuvkerak? A)300gsuv,15gtuz B)255gsuv,45gtuz C)253gsuv,47gsuv D)285gsuv,15gtuz

10.40gsuvda6gichimliksodasieritildi.Hosilbo’lganeritmaningmassaulushiva

foizkonsentratsiyasinitoping.
A)0,15,15%	B)0,4,40%	C)0,13,13%	D)0,31,31%

11.250gsuvda20goshtuzieritildieritmaningmolyarkonsentratsiyasinitoping? A)2M B)1,37M C)1M D)1,5M

12.Zichligi1,41 g/mlbo’lgan 20 % linatriy gidroksid eritmasining molyar

konsentratsiyasinitoping.
A)7,05M	B)0,71M	C)3,5M	D)1,4M

13.400gsuvda25gkaliynitrateritildieritmaningnormalkonsentratsiyasinitoping. A)0.618N B)1.237N C)0.309N D)0.736N 14.Kaliynitratningekvivalentmassasinechagateng? A)50,1 B)101 C)20,2 D)10,1

15.30mlxloridkislotaeritmasinineytralashuchunishqorning20ml0,25Nli eritmasisarfbo’ldi.Kislotaeritmasinormaliginianiqlang. A)0.333 B)0.999 C)0,167 D)0.111

16.Massaulushi0,16bo’lgannatriyxloridningeritmasidan200gtayyorlashuchun zarurbo’lgantuzvasuvningmassasinitoping.

A)16gtuzva184gsuv B)7,4gtuzva192,6gsuvC)64gtuzva146gsuv D)32gtuzva168gsuv

17.Qondasuvnechafoiznitashkiletadi?
A)98% B)83% C)87% D)47%

18.Eritmaning2litrida1molsulfatkislotaeriganbo’lsa,uningmolarvanormal konsentratsiyasinitoping.

A)1M,0,5N B)0,5M,1N C)2M,1N D)0,5M,0,5N 19.Eritma-

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45

20.To’yinganeritma-

21.Suyultirilganeritma-

22.To’yinmaganeritma-

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23.3litr0,5Mlinatriysulfateritmasinitayyorlashuchunqanchatuzolish kerak?__________

____________________________________________________________________________24.

Kalsiyxloridning300g35%liva200g40%lieritmalariaralshtirildi.Hosilbo’lgan eritmadagikalsiyxloridningmassasinivafoizkonsentratsiyasini toping.

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25.200g20%linatriyxlorideritmasinitayyorlashuchununing40%va15%li
eritmalaridannechagrammdanaralshtirish
kerak?______________________________________________

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