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Kimyo fanidan nazorat ishi


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1- nazorat ishi

Mavzu: Asosiy kimyoviy tushinchalarni takrorlash. Atom tuzilishi. Anorganik birikmalarning asosiy sinflari

1. Vodorod va ba’zi aktiv metallar bilan birikib nima hosil qiladi ?

A) gidridlar; B) oksidlar C) kislotalar; D) asoslar

2. Metallarga ham metallmaslarga ham hos bo’lgan amfoter xossaga ega bo'lgan elementlarni ko’rsating

A) Rux va aluminiy B) natriy va temir C) magniy va kaliy D)mis va xrom

3. 12 g uglerodda nechta atom bor?

A) 6,09 ∙10²³ B) 6.02∙ 1O²³ 06,05∙10²⁵ D)6,02∙10²⁰

4. Avagadro qonuni qaysi bandda to’g’ri tariflangan?

A) Bir-xil sliaroitda turli xildagi gazlarning bir xil hajmlardagi molekulalar soni bir xil bo’ladi.

B) Moddalar bir-biri bilan ularning ekvivalenllariga proporsiyonal miqdorda ta’sirlashadilar

C) Reasiyalarning issiqlik effekti boshlangich moddalar bilan hosil bo'lgan niahsulotning tabiatiga bog’liq bo’lib, reaksiyaning oraliq bosqichlariga taaluqli emas.

D) Elcmentning nisbiy atom massasining valentliklariga nisbati shu elemcntning ekvivalentidir.

5. Asosli oksidlar qatorini toping A) CO₂, SO₃, P₂O₅ B) Na₂O, BaO, CuO

C) ZnO, Al₂O₃, Sb₂O₃ D) CO,NO, N₂O

6. Asoslar suvda crishi va erimasligiga qarab nechta turga bo’linadi?

A) 4 B)6 C) 2 D)3

7. Suvda erimaydigan asoslar qatorini toping

A) Cu(OH)₂, Fе(OH)₂, Сr(OН)₂ В) NaOH, Ca(OH)₂, KOH

C) NaOH, А1 (OН)₃, Zn(OH)₂ D) Ca(OH)₂,Ba(OH)₂,KOH

8. Amfoter asoslar qatorini toping

A) NaOH, Cu(OH)₂, KOH B) Ca(OH)₂,Ba(OH)₂ (NiOH)₂

C) Al(OH)₃, Zn(OH)₂, Cr(OH)₃ D) Ca(OH)₂,Ba(OH)₂, (AlOH)₃

9.Qaysi holatda Al(OH)₃, olish usuli ko’rsatilgan?

A) AlC1₃+ NaOH→ B) Al+HCl→

C) Al₂O₃ + KCl → D) AlCl₃+H₂O

10. Kislotalar nima?

A) Molekulasi tarkibida melallarga o’z о‘rnini bera oladigan vodorod atomlari va kislola qoldiqdan tarkib topgan murakkab moddalar

B) Metall atomi bir yoki bir nechta gidroksogruppalardan tashkil topgan murakkab moddalar

C) Tarkibida vodorod atomi va gidroksogruppadan tarkib topgan moddalar.

D) Metall atomi va kislola qoldiqdan tarkib topgan moddalar

11. Kislotalar tarkibida kislorod atomining bo’lish yoki bo’lmasligiga qarab necha turga bo’linadi?

A) 2 13)4 C)3 D)5

12. Faqat kislorodli kislotalar qatorini toping A) H₂S. H₂CO₃, HF В) HCl, H₂CrO₄,H₂S

С)H₂SO₄, H₂CO3, H₂SO₃ D) HCN, HCl, HJ

13. Ikki negizli kislotalar qatorini ko’rsating

A) H₂S, H₂CO₃, HF В) HCl, Н₂CrO₄.H₂S

C) H₂SO₄, H₂CO₃, H₂SO₃, D) HCN, HCl, HJ

14. 2 g natriy gidroksidni to’liq neytrallash uchun necha gramm sulfat kislota kerak?

A) 2,45 g B) 24,5 g C) 4,9 g D) 9,8 g

15. Nordon tuzni formulasini toping

_{A) NaHCOs B) NaCl C) Ba(NO3)2 D) CaOCl2}

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15

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2-nazorat ishi Yozma ish

1-variant

1. Ca, K, Li elemenllarini atom qavatlarni tuzilishini va elektron formulalarini yozing.

2. Tabiiy argon ³⁶Ar, ³⁸Аr,⁴⁰Аr izotoplarning aralashmasidan iborat bo’lib: ³⁶Ar- 0,3%, ³⁸Ar-0,7%, ⁴⁰Ar-99% ni tashkil etadi. Tabiiy argonni o’rtacha atom massasini aniqlang.

3. Aluminiyni davriy jadvalda tutgan o’rniga qarab unga ta’rif bering.

4. Quyidagi o’zgarishlarni amalga oshirish uchun zarur bo’lgan reaksiyalar tenglamalarini yozing

СuO→CuCl₂→Cu(OH )₂→CuO

2-variant

1. Mg. Сu. P elemenllarini atom qavatlarni tuzilishini va elektron formulalarini yozing.

2. Tabiiy kremniy ²⁸Si,²⁹Si,³⁰Si izotoplarning aralashmasidan iborat bo’lib: ²⁸Si- 92,3%. ²⁹Si-4.7%. ³⁰Si-3% ni tashkil etadi. Tabiiy kremniyni o’rtacha atom massasini aniqlang.

3. Natriyni davriy jadvalda tutgan o’rniga qarab unga ta’rif bering.

4. Quyidagi o’zgarishlarni amalga oshirish uchun zarur bo’lgan reaksiyalar tenglamalarini yozing

Fe→FeSO₄→Fe(OH)₂→FeO

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