Viii sinf. Kimyo. Fanidan 1-yarim yillik test savollari. Erigan moddaning massa ulushini topish formulasi qaysi ?

VIII sinf. Kimyo. Fanidan 1-yarim yillik test savollari.

1. Erigan moddaning massa ulushini topish formulasi qaysi ?

A) C---M₁ 100/M B) C----M/V 100 C) C-----M/M₁ D) Cm= m*1000/M*v
2.Natriy atomining elektron formulasini aniqlang?
A) 1S²2S²2P⁶3S¹ B) 1S²2S²2P⁶3S² C) 1S²2S²2P⁶ D) 1S²2S²
3. Quyidagi reaksiya kimyoviy reaksiyalarning qaysi turiga kiradi? Zp + 2HCI --- ZpCI₂ + H₂
A)Birikish B) Almashinish C) Ajralish D) o’rin olish
4. Тuzning formulasini aniqlang ?
A) H₃PO₄ B) NaOH C) KCI D) K₂O
5.Ishqorni ko’rsating ?
A)LiOH B) CO C) H₂SO₄ D) H₂S
6.Kislorodli kislotani ko’rsating?
A) HCI B) HCIO₄ C) CI₂O₇ D) H₂Fe
7.Uch xil tuz hosil qiladigan kislotani aniqlang ?
A) HCI B) H₂SO₄ C) H ₃PO₄ D) HCa
8. Ҳar қanday gazning 1 moli normal sharoitda қanday xajmni egallaydi?
A) 22.4 B) 2.24 C) 224 D) 1,12 l
9. 1.8 gr. suv parchalanganda necha litr vodorod xosil bo’ladi?
A) 2.24 l. B) 22.4 l. C) 44.8 l. D) 1.12
10. Avagadro doimiysini toping.
A) 6.02*10²³ B) 3.01* 10²³ C) 60.2*10²³ D) 6.02*10^-23
11. 10 mol sum necha gr. keladi?
A) 180 gr. B) 18 gr. C) 36 gr. D) 360 gr
12. Karbonat angidrit (CO₂) ning molekulyar massasi қancha?
A) 44 B) 46. C) 41. D) 34
13.Oddiy moddalar qatorini ko’rsating ?
A) H₂ H₂O O₂ B) Fe Cu Na C)) Cu Na NO D) K, Cl, H₂
14. 5.6g.temir mis sulfat tarkibidagi necha gramm misning o’rnini olishi mumkin
A) 64g. B) 6.4g C) 3.2g. D) 4,2 g
15. 32g. Mis (II)- sulfat bilan necha gramm o’yuvchi natriy almashinish reaksiyasiga kirishishi mumkin?
A) 16g. B) 32g. C) 40g. D) 56 g
16. Quyidagi moddalarning qaysi biridan kislorod olish mumkin ?
A) Na₂SO₄ B) KMpO₄ C) K₃PO₄ D) Na₂S
17.Davriy sistemada elementning tartib raqami qanday ma’noga ega ?
A) Yadro zaryadiga teng B) Elektro qobiqlari soniga teng C) Neytronlar soniga teng D) elektron soniga teng
18. Quydagi qaysi element atomining tuzilishi 2e ,8e,8e ekanligini aniqlang ?
A) K B) Ar C) CI D) Fe
19 S-ELEMENТLAR qatorini ko’rsating ?
A) Li Na Md B) Na Md O C) Li Na CI D) Fe Ca O
20 P-elementlar qatorini ko’rsating ?
A) Si N CI B) Si Md CI C) N CI Ca D) Fe O Ca
21. Davriy sistema va davriy qonun qachon kashf etilgan ?
A) 1861 y B) 1869 y C) 1879 y D) 1888 y
22. Elektr manfiyligi yuqori bo’lgan elementni ko’rsating ?
A) kislorod B) xlor C) azot D) vodorod
23. Aammiak malekulasida ximyaviy bog’lanishning qaysi turi kuzatiladi ?
A) ion bog’lanish B) kovalent bog’lanish C) Qutbli kovalent bog’lanish D) C) Qutbsiz kovalent bog’lanish
24. Osh tuzi qanday bog’lanish natijasida hosil bo’lgan ?
A) ion bog’lanish B) kovalent bog’lanish C) Qutbli kovalent bog’lanish D) C) Qutbsiz kovalent bog’lanish
25.Oksidlanish darajasi +6 bo’lgan elementni ko’rsating ?
A) H₂ B) Ca C) S D) Fe
VIII sinf. Kimyo. Test kaliti. 1-yarim yillik

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25
B	C	C	A	A	B	C	A	A	A	A	A	B	B	A	B	A	B	A	A	B	A	C	A	C