Nazoratishi mavzu: Nazorat shakli

Nazorat ishining bali – bahosi:

2- NAZORAT ISHI
Mavzu: Uglerod guruhi elementlari, uglerodning xossalari, karbonat kislota, kremniyning xossalari, silikat sanoati.

Nazorat shakli: Yozma ish.
Ivariant

1. Ohakli suv orqali uglerod (IV)-oksid mo‘l o‘tkazilganda, dastlab ohakli suv loyqalanadi, so‘ngra loyqalanish yo‘qolib, tiniq eritma hosil bo‘ladi. Bu o‘zgarishlar natijasida sodir bo‘lgan reaksiya tenglamalarni yozing.

2. Uglerodning kimyoviy xossalarini namoyon qiluvchi reaksiya tenglamalarini yozing.

3. 44,8 litr karbonat angidrid hosil qilish uchun (n.sh.) necha g kalsiykarbonatni parchalash lozim?

4. Massasi 39,6 g bo‘lgan magniy va 37,8 g bo‘lgan SiO₂ orasidagi reaksiya natijasida hosil bo‘lgan kremniyni eritish uchun massa ulushi 34% bo‘lgan KOH eritmasidan () qanday miqdori talab qilinadi?
II variant

1. Quyidagi qaysi moddalar bilan uglerod (IV)-oksidi reaksiyaga kirishadi, reaksiya tenglamalarini yozing. HNO₃NaOH, KCI, SO₃ Na₂O, H₂SO₄, Ca(OH)₂, K₂O.

2. Kremniyning kimyoviy xossalarini namoyon qiluvchi reaksiya tenglamalarini yozing.

3. 10 g kalsiy karbonati bor bo‘lgan suspenziyani gidrokorbonat holida eritish uchun qancha hajm uglerod (IV)-oksidi kerak bo‘ladi?

4. Tarkibi 20 % li bekorchi jinslar bo‘lgan 4,5 gramm toshko‘mir yondirilganda (n.sh.da) necha litr CO₂ gazi ajraladi?
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3- NAZORAT ISHI

Mavzu: Metallarning davriy sistemadagi o‘rni, tabiatda tarqalishi, ishlatilish sohalari, xossalari, elektro kimyoviy kuchlanish qatori, qotishmalar, ularning xossa­lari

Nazorat shakli: Masalalar yechish
I variant

1. 
   150 gr ohaktosh parchalanishi natijasida n. sh. da o‘lchangan 11,2 l karbonat angidrid hosil bo‘ladi. Ohaktosh tarkibida necha foiz kalsiy karbonat bo‘lgan?
   
2. 
   1,2 mol kaliy suv bilan reaksiyaga kirishganda n.sh.da o‘lchanganda qancha hajm vodorod ajralib chiqadi?
   
3. 
   Natriy sulfat tuziga natriy karbonat aralashganligini qanday tajriba bilan aniqlash mumkin? Reaksiya tenglamalarini yozing.
   
4. 
   Quyidagi o‘zgarishlarni amalga oshirish uchun zarur reaksiya tenglamalarini yozing. Na→NaOH→NaHCO₃→NaCO₃→CO₂↑
   

II variant

1. 
   53 gramm natriy karbonat yetarli miqdordagi ohakli suv bilan reaksiyaga kirishib qancha o‘yuvchi natriy hosil qiladi?
   
2. 
   Kaliyning kislorodli birikmalaridan birining tarkibida 44,8 % kislorod bor. Ushbu birikmaning oddiy formulasini aniqlang. Bunday birikmalar haqida nimalar bilasiz?
   
3. 
   KNO₃, NaNO₃, Pb(NO₃), kons. HNO₃, NH4NO₃,Cu(NO₃) va AgNO₃ qizdirilganda har qaysi moddada qanday o‘zgarish sodir bo‘ladi, reaksiya tenglamalarini yozing.
   
4. 
   Quyidagi o‘zgarishlarni amalga oshirish uchun zarur reaksiya tenglamalarini yozing. К→KOH→K₂SO₄→KCI→KNO₃→KNO₂
   

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Nazorat ishining bali – bahosi:

4- NAZORAT ISHI
Mavzu: Metallar, ularning korroziyasi, ishqoriy metallar, natriy, kaliy, xossalari va eng muhim birikmalari

Nazorat shakli: Test sinovi
1. Kalsiy oksidi sanoatda qaysi usullardan foydalanib olinadi?

1. 
   kalsiyga suv ta’sir ettirib;
   
2. 
   kalsiy gidroksidni qizdirib;
   
3. 
   ohaktoshni qizdirib;
   
4. 
   kalsiyni xlor bilan ta’sirlashtirib.
   

2. 3,42 g ishqoriy metall suv bilan reaksiyaga kirishganda 448 ml vodorod (n.sh.da) ajralib chiqdi. Reaksiyaga kirishgan metallning nomi?

a) kaliy; b)rubidiy; c)seziy; d) natriy.

3. Metallarning peroksidlari qanday hosil bo‘ladi?

1. 
   Natriy va kaliyni kislorodda yondirib;
   
2. 
   Natriy va kaliyga galogenlar ta’sir ettirib;
   
3. 
   Natriy va kaliyga oltingugurt ta’sir ettirib;
   
4. 
   Natriy va kaliyga vodorod ta’sir ettirib.
   

4. Yuvuvchi vosita «kir sodasi formulasi qaysi bandda to‘g‘ri ko‘rsatilgan?

a) Na₂CO₃·10H₂O; b) NH₄HCO₃; c) NaHCO₃; d) Na₂CO₃· H₂O.

5. Ichimlik sodasi formulasi qaysi bandda to‘g‘ri ko‘rsatilgan?

a) Na₂CO₃; b) CaO; c) NaHCO₃; d) NH₄HCO₃.

6. Quyidagi qaysi qator metallarining hammasi suv bilan reaksiyaga kirishganda vodorod ajralib chiqadi?

a) Zn, Mg, K, Fe, Al; b) Ca.Na, Hg, Cu;

c) Na, Al, Li, Mg; d) Li, k, Mg, Cu.

7. Quyidagi qaysi reaksiyalarni amalda oshirish mumkin?

1. 
   Cu + HCI=
   
2. 
   Mg + H₂SO₄(suyul)=
   
3. 
   Zn + CuSO₄=
   
4. 
   Cu + Ca(NO₃)₂=
   

8. Suvning qattiqligini quyidagi qaysi ionlar beradi?

a) Ca²⁺,Mg²⁺; b) Ca²⁺, Na⁺, Fe²⁺; c) Zn²⁺, K⁺; d) Fe²⁺,AI³⁺.

9. 44,8 litr karbonat angidrid hosil qilish uchun (h.sh)da necha gramm CaCO, ni parchalash lozim?

a) 25 g; b) 50 g; c) 200 g; d) 150 g.

10. Kalsiy gidrokarbonat qizdirilganda qolgan qoldiq dastlabki massaning necha foizini tashkil etadi?

a) 63%; b)53%; c)43%; d) 73%.

11. Ohakli suv orqali uglerod (IV)-oksidi mo‘l o‘tganda dastlab ohakli suv loyqalanadi, so‘ngra loyqalanish yo‘qolib, tiniq eritma hosil bo‘ladi. Bu o‘zgarish quyidagi qanday jarayon natijasida sodir bo‘ladi?

1. 
   CO₂ ni suv bilan o‘zaro ta’siri natijasida.
   
2. 
   Ohakli suvni CO₂ bilan ta’siri natijasida.
   
3. 
   Kalsiy karbonatni CO₂ va H₂O bilan reaksiyaga kirishib suvda eruvchan kalsiy gidro karbonat hosil bo‘lishi natijasida.
   
4. 
   Kalsiy karbonatni CO₂bilan ta’siri natijasida.
   

12. 54 gramm kristall holdagi sodadan Na₂CO, ning 10% li eritmasini tayyorlash uchun qancha suv kerak?

a) 146g; b) 240 g; c) 250 g; d) 350 g.

13. Quyidagi o‘zgarishlar natijasida qanday X₁ modda hosil bo‘ladi?

+HOH+CO₂,+CO₂.

Ca²⁺ ->-Ca(OH)₂ >X+H₂O+CO₂----->X₁

a) CaC0₃; b) Ca(HC0₃)₂; c) CaO; d) Ca(OH)₂.

14. Havoda eng kam korroziyaga uchraydigan metallning nomini aniqlang.

a) Mis; b) Temir; c) Xrom; d) Rux.

15. Shisha Na₂CaO 6SiO₂ tarkibidagi kalsiy oksidining massa ulushini (% hisobida) aniqlang.

a)11, 7%; b)15,6%; c)13,4%; d)24,4%.

Test raqami	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Javob
Ball

Nazorat ishining bali – bahosi:

5- NAZORAT ISHI

Mavzu: Metallarning kimyoviy xossalarini namoyon qiluvchi tajribalarni bajarish

Nazorat shakli: Amaliy mashg‘ulot
I variant

Tajriba: Metallarning tuzlar eritmalari bilan o‘zaro ta’siri.

Birinchi probirkaga mis (II) sulfat yoki mis (II) nitrat eritmasidan 1-2 ml quying, ustiga kichkina mixni ipga bog‘lab tushiring va kuzating. Ma’lum bir vaqt o‘tgandan keyin mixda qanday o‘zgarish sodir bo‘ladi?

Ikkinchi probirkaga kumush nitrat yoki qo‘rg‘oshin (II) nitrat eritmasidan quying, ustiga mis simni bo‘lakchasidan soling va kuzating. Mis simi bo‘lakchasida qanday o‘zgarish sodir bo‘ladi?

Ikkala probirkada sodir bo‘ladigan hodisaning reaksiya tenglamasini molekular

va ionli ko‘rinishda yozing.

II variant

Tajriba: Anorganik moddalar orasidagi genetik bog‘lanish. Quyidagi o‘zgarishlarni tajribalar asosida bajaring: Cu →CuO→ CuSO₄ →Cu(OH)₂ → CuO.

Mis plastinkasini spirt lampasi yordamida qizdiring, natijada plastinka qorayadi. Qoraygan qismini pichoq yordamida filtr qog‘oziga qirib tushiring. Buni bir necha bor takrorlang. Hosil bo‘lgan mis (II)-oksidini toza probirkaga solib, ustiga 1-2 ml sulfat kislota eritmasidan quying. Reaksiyani tezlatish maqsadida probirkani tutqichda ushlab, spirt lampasi yordamida qizdiring. Hosil bo‘lgan havorang eritmaga nartiygidrooksid eritmasidan 1-2 ml quying, natijada havo rangli mis (II) gidrooksid cho‘kmasi hosil bo‘ladi. Cho‘kmani filtr qog‘ozi yordamida filtrlang va ozgina quritib, chinni kosachaga solib, spirt lampasi yordamida qizdiring. Nima kuzatiladi? Tajriba xulosalarini va sodir bo‘lgan reaksiya tenglamalarini daftaringizga yozing.
III variant

Probirkalarga 3-4 tomchidan kalsiy va bariy tuzlari eritmalaridan tomizib, ular ustiga 3-4 tomchidan natriy karbonat eritmasidan qo‘shing. Har bir probirkada hosil bo‘lgan cho‘kmalar ustiga suyiltirilgan xlorid kislota eritmasidan qo‘shing va ohista chayqating. Ularni erish tezligiga ahamiyat bering. Ikkala probirkada sodir bo‘ladigan hodisaning reaksiya tenglamasini yozing.

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