Mustaqillik yillarida mamlakatimizda hukumatimiz tomonidan ta’lim sohasiga eng muhim vazifa sifatida e’tibor qaratib kelinayotgani sir emas. Bu sohada qator islohotlar qabul qilindi

13. 23 g etil spirtini yondirish uchun qancha hajm (n.sh.da) havo kerak bo'ladi?

A)1,68 I; B) 16,8 I; C) 168 I; D) 1680 I.

14. Legirlangan cho‘yan tarkibida bo‘ladigan metallar qatorini ko'rsating.

A) K, Na, Al, Fe; B) Cr, Ni, Si, Mn;

B) Mg,Cr, Fe, S; D) Al, Cr, Si, P.

15. Saxaroza formuiasi qaysi bandda to ‘g‘ri kо ‘rsatilgan?

A) C₆H₁₂O₆; B) C₁₂H₂₀O₉; C)C₆H₁₀O₅; D) C₁₂H₂₂O₁₁

Test raqamlari	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
O’quvchining javoblari.
O’qituvchining belgilari

Nazorat ishining bali _________

7-Nazorat ishi

Mavzu: Bir atomli spirtlar, ko'p atomli spirtlar, fenollar, aldegidlar, karbon kislotalar, efirlar, uglevodlar, aminlar, aminokislotalar, oqsillar, yuqori molekular birikmalar.

Nazorat shakli: Yozma ish.

I variant

1. Hajmi 12 I bolgan metilaminni yoqish uchun qancha hajmda (n.sh.da) havo kerak?

2. Etilen uglevodorodlarini gomologik qatori haqida (misollar keltirib) ma’lumot yozing.

3. Bir asosli karbon kislotaning tarkibi quydagicha: С-48,65%, H-8,11% . Ushbu ma’lumotdan foydalanib kislotaning formulasini aniqlang.

4. Mis (ll)-nitrat tuzini uch xil usul bilan hosil qilish reaksiyasi tenglamalarini yozing.
Masalalarni yechilishi_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Nazorat ishining bali _________

II variant

1. Hajmi 11,2 I bo'lgan etilaminni yondirish uchun kerak boladigan kislorodning hajmini (n.sh.da) aniqlang.

2. Quyidagi uglevodorodlarning tuzilish formulasini yozing: 3-metil- pentan, 3 - metil 4 - etilgeksan, pentadien - 1,3, butadien -1,4.

3. Temir (H)-xlorid tuzini to‘rt xil usul bilan hosil qilish reaksiya tenglamalarini yozing.

4. 11,2 I propan mo‘l kislorodda yondirilsa n.sh.da olchangan qancha hajm uglerod (IV)-oksid hosil bo'ladi?

Masalalarni yechilishi_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Nazorat ishining bali _________
8-Nazorat ishi

Nazorat shakli: Test.

1. 14,3 g soda qattiq qizdirib 5,3 g suvsiz Na₂CO₃olindi. Kristalgidratning formulasini aniqlang.

A) Na₂CO₃ ∙ 10H₂O; , B) Ba₂CO₃ ∙ H₂O;

C) Na₂OAl₂ O₃ ∙ 6H₂O; D) KCIMgCI,- 6H₂O.

2.Beriigan metallardan qaysi biri H₂S0₄ (kons.) bilan reaksiyaga kirishmaydi?

A) Ag; В) Сu; C) Hg; D) Fe.

3. Quyidagi reaksiya natijasida hosil bo'ladigan moddalarni aniqlang.

KOH(suvuq) + Cl2→

A) KCI, H₂O; B) KCIO, H₂O;

C) KCI, KCIO, H₂O; D) KCIO₃, H₂O.

4. Quyidagi kislotalarning qaysi biri kuchli kislotalik xossasiga ega?

A) H₄SiO₄; В) H₃PO₄; C) HCIO₄; D) HCIO₂.

5.Ishqoriy metallar havoda qizdirilganda qanday birikmalar hosil qiladi?

A) ishqoriy metallarning oksidlari;

B) ishqoriy metallarning gidroksidlari;

C) ishqoriy metallarning peroksidlari;

D) litiy metall oksid, qolganlari esa peroksidlar hosil qiladi.

6. Ammiak laboratoriya sharoitida qanday olinadi?

A) ammoniy tuzlariga ishqor ta’sir ettirib;

B) odatdagi sharoitda suv ta’sir ettirib;

C) past temperaturali issiqlik ta’sir ettirib;

D) ammoniy tuzlariga kislotalarni ta’sir ettirib.

7. Oltingugurt nechta allotropik shaklga ega?

A) 4 ta; B)2ta; C) 3 ta; D)5ta.

8. Xlorid ionini eritmada mavjudligini aniqlovchi modda;

A) MgSO₄; B) CuSO₄; C)ZnSO₄ ; D)AgCI.

9. Uglerod qizdirilganda kislorod, oltingugurt, azot, metallar, metal oksidlari qatori yana qaysi galogen bilan ta’sirlashadi?

A) iod; B)xlor; C) ftor; D) brom.

10.Formulalari quyidagicha bo‘lgan oksidlarning qaysi birlarida kislorodning massa ulushi 50% ga teng?

A) SO₃; В) CO; C) CO₂; D) SO₂.

11.Quyidagi o‘zgarishlarni amalga oshirishda 1, 2, 3 moddalarni aniqlang.

ZnO + 1→ ZnCI₂ + 2 → Zn(OH)₂ + 3→ Na₂ZnO₂

A) Cl₂, H₂O, Na₂O;

B) HCI, NaOH, NaOH(mol);

C) HCI, H₂O, NaOH;

D) Cl₂, NaOH, Na₂O.

12.Normal sharoitda suv bilan ta’sirlashmaydigan moddani aniqlang.

A) magniy;

B) berilliy;

C) bariy;

D) stonsiy.

13. Mo‘l miqdordagi natriy gidroksid va xlorbenzol reaksiyaga kirishib

quyidagi qaysi birikmani hosil qiladi?

A) benzaldegid;

B) natriy benzoate;

C) fenol;

D) natriy fenolyat.

14.2CO + O₂=2CO₂ + Q bu kimyoviy reaksiyada reaksiya tezligini oshirish uchun quyidagilardan qaysi biri zarur?

A) uglerod (II)-oksidning konsentratsiyasini oshirish;

B) O₂ kislorodni miqdorini kamaytirish;

C) bosimni kamaytirish;

D) temperaturani kamaytirish.

15.100 l metan yondirilganda qancha issiqlik ajralib chiqadi? Metanning yonish reaksiyasining issiqlik effekti +880 kJ.

A) 1455 kJ; B) 4800 kJ; C) 3928 kJ; D) 2736 3928 kJ.

Test raqamlari	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
O’quvchining javoblari.
O’qituvchining belgilari

Nazorat ishining bali _________