Qaysi moddaning 5 molida 90 ta e va 15 ta atom bo'ladi? A n2H4 b h2s c c2H6 d h2O2

1. 
   Qaysi moddaning 5 molida 90 ta e va 15 ta atom bo'ladi?
   

A)N2H4 B)H2S C)C2H6 D)H2O2
2.Qizdirilganda suyuqlanmasdan gaz holatiga o'tadigan moddalar toping?
A)suv ,osh tuzi B)yod ,naftalin C) xlor,brom D)muz,yod
3.4.2gr X moddadan foydalanib eng kopi bn X3Y4 hosil qilish mumkin?
(Birikma XY bo'lsa, massa nisbat X/Y=7/2ga teng.)
A)9.2 B)6.3 C)4.4 D)5.8
4. natriy peroksiddagi O ning oksidlanish darajasini toping
A)+2 B)-2 C)+1 D)-1
5.59.2 gr Xrom(2) sulfatning ekvivalent miqdorini toping?
A)0,2 B)0.4 C)0.6 D)0.8
6.SO2 va Ar iborat aralshmaning masasi?
A)40 B)36 C)66 D)104
7. Normal sharoitdagazning bosimi qiymati necaga teng.
A)101.325kPa B)1atm C)760 mmHg)A vaB,C
8.Toq e lari 5 ta bo'lgan zarrachalarni toping
1)temir2 kation 2) marganes2 kation 3)xrom2 kation
4)xrom3 kation 5) temir3 kation 6) xrom 7) marganes
A)2,5,7 B)1,3,5,6 C)1,2,5,7 D)2,4,5,6
9.Tarkibida umumiy bog'lar soni 24 bolgan moddni toping?
A)Al sulfat B)Al nitrat C)Ca fosfat D)K karbonat
10.Qizil fosforning kristal panjara turini toping ?
A)atom B) ion C) molekular D)metall
11.sariq qon tuzidagi markaziy atomning gibridlanishini toping?
A)sp³d² B)sp² C)sp²d³ D)sp
12.MgSO4 disotsialansa nechta kation chiqadi
A)1 B)2 C)3 D)4
13. gibridlanish kim tomonidan fanga kiritilgan
A)Poling B)Berselius C)Broun D)javob yoq
14.80 NO va N2 aralashmasiga X ml xavo qoshildi (20% O2) .Hosil bolgan gazlar aralashmada 20 ml O2 va 180N2 bor bolsa Dastlabki aralashmada gi N2 ning hajmiy ulushini toping?
A)0.2 B)0.5 C)0.8 D)0.75
15. 29.1 gr sulfat kislotaniangidridga aylantirish uchun necha C kerak?
A)2.4 B)1.2 C)12 D)24
16. Parchalanish reaksiyasi keltirilmagan qatorni toping?
1)H2O=O2+H2 2)CaO+H2O=Ca(OH)2 3)NH3=N2+H2
A)1.3 B)2.3 C)faqat 2 D)2.3
17.Molekulasi qutbsiz bolgan moddani ttoping
A)C B)CO C)PH3 D)CO2
18.Kation boyica gidrolizlanadigan moddani toping.
A)MgCl2 B)ZnCO3 C)NaCl 150 gr eritmaga 300 gr suv qo'shilganda moddaning massa ulush gr i qanday ozgaradi
A) 3 marta kamayadi B)3.3 marta kamayadi C)2 marta kamayadi D)1.5 marta kamaya D)KCl
19. Gidrolizlanadigan moddani aniqlang.
A) CaCo3 B)NaCl C)K2SO4 D)NH4Cl
20.Teng miqdordagi Al2(CO)3va potash tarkibidagi C lar nisbatini toping?
A)2:1 B)3:2 C)3:1 D)2:3
21.Inson organizmida nechta element mavjud?
A)93 ta B)90 ta C)92 ta D)89 ta
22. 2 mol suvda nechta atom bor?
A)12.04*10²⁴ B)4Na C)3Na D)21.07*10²⁴
23.Alyuminiy gidrokso korbanat tarkibida C qanday gibridlangan?
A)sp² B)sp³ C)sp D)sp³d
24.Nitrat kislota va Pirofasfat kislotalarni massalar yigindisini toping?
A)251 B)241 C)342 D)128
25.Vodorodga ga nisbatan zicligi 10 ga teng bolgan moddaning geliyga nisbatan zicligini toping?
A)3 B)20 C)4 D)5
26.Sulfat kislotadagi neytron lar sonini toping?
A)50 B)48 C)32 D)40
27. K2CO3 qanday muhit namoyon qiladi?
A) Ishqoriy B) Kislota C) Neytral D)AvaB
28. Eng yengil metall?
A)Al B)Na C)Li D)K
29.2 mol Suv va 3 mol CO dagi kislorod atomlar sonini toping?
A)5 Na B)7 Na C)4 Na D)8Na
30.Disotsiyalanganda ion kop hosil qladigan moddalarni aniqlang.
A)H2S B) H2SO3 C)H3PO4 D)H2SO4