Nazorat ishlari va laboratoriya mashg’ulotlari 7 sinf

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7 kimyo nazorat amaliy daftar

3-Nazorat ishi

Mavzu; Fizik va kimyoviy o’zgarishlarga, kimyoviy reaksiya tenglamalari. Koeffitsiyent. Massaning saqlanish va tarkibning doimiylik qonunlari, molar hajm va kimyoviy reaksiya turlari haqida mavzularni umumlashtirish.

Nazorat shakli: Masalalar yechish.

1. 87,75g osh tuzini hosil qilish uchun qancha massa natriy kerak?

2. Tarkibida 63,22% marganes va 36,78% kislorod bo’lgan moddaning formulasini aniqlang.

3. 10g vodorodning normal sharoitidagi hajmini va undagi molekulalar sonini toping.

4. 41g natriy fosfat Na₃ PO₄ ning modda miqdorini hisoblang.

5. Quyidagi reaksiyalarining tugallangan va koeffitsiyentlarini qo’ying.

t^o

AL+CL₂ = AgBr--------

Masalalarni yechilishi_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Nazorat ishining bali _________

4-Nazorat ishi

Mavzu: Kislorod, uning olinish,moddalarning yonishi, vodorodning xossalari, olinishi mavzularini unumlashtirish.
Nazorat shakli: Test.
1. Yer qobig’ining qancha foiz og’irlik qismini kislorod tashkil etadi?

A) 19% B) 47% C) 29% D) 53%

2. Quyidagi qaysi moddalar fotosintez jarayonida hosil bo’ladi?

A) CO₂ B) AL₂O₃C) SO₂ D) O₂

3. Maktab laboratoriyasida kislorodni quyidagi qaysi moddalardan olish mumkin?

1. Havo 2. KMnO₄3. FeO 4. KCIO₃ 5. N₂O 6. SO₃

A) 1va 3 B) 2va 4 C) 4va 6 D) 1,2 va 4
4. Kislorod quyidagi qaysi elementlar bilan reaksiyaga kirishadi?

1. Na 2. Ag 3. P 4. Au 5. N 6. S 7. Pt 8. AL

A) 1,3,5,6,7 B)1,3,5,6,8 C) 1,2,4,6,7 D) 3,4,6,7,8
5. Yer qobig’ining necha foizini kislorod tashkil qiladi?

A) 56% B) 82% C) 42% D) 47%

6. Ohaktosh CaCO₃ tarkibida kislorodning massa ulushini aniqlang.

A) 42% B) 48% C) 12% D) 40%

7. Havoga nisbatan zichligi 2g teng bo’lgan gazning nisbiy molekular massasini hisoblang.

A) 29 B) 54 C) 48 D) 58

8. Temir kislorodda yonganda qanday birikma hosil bo’ladi?

A) FeO B) Fe₂O₃ C) Fe₃O₄ D) Temir kislorodda yonmaydi.

9. 30gr uglerodni to’liq yondirish uchun necha litr kislorod kerak?

A) 56 B) 52 C) 36 D) 44,8

10. Suv tarkibidagi vodorodning foiz ulushi nechaga teng?

A) 18,2% B) 11,11% C) 22% D) 14%

11. Vodorod quyidagi qaysi metallda eriydi?

A) natriy B) rux C) platina D) temir

12. Vodorod qayerda eng ko’p uchraydi?

A) litosferada B) gidrosferada C) atmosferada D) koinotda

13. Vodorodning massa ulushi quyidagi birikmalarning qaysi birida ko’p?

A) HCl B) H₂O₂C) H₂S D) H₂O

14. Vodorod bromid HBr ning havoga va vodorodga nisbatan zichligini aniqlang.

A) 2,8 va 40,5 B) 2,5 va 42 C) 2,2va 51 D) 2,4 va 43

15. Quyidagi kislorodli birikmalarning qaysi biri noto’g’ri yozilgan?

A) SO₃ B) SO₂C) P₂O₅D) Fe₂O

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 _________
5- Nazorat ishi

Mavzu: “Suvning tarkibi xossalari, tarqalishi, ahamiyati, ishlatilishi”,”Eruvchanlik”, “Eritmalar”mavzularni umumlashtirish.

Nazorat shakli: Masalalar yechish.

1. 3,9g kaliy miqdori suv bilan reaksiyaga kirishgan qancha hajm (n.sh. da) vodorod ajralib chiqadi?

2. Tuzning 20^oC dagi eruvchanlik 25 ga teng bo’lsa, 200 g to’yingan eritmada shu tuzdan necha g bo’ladi?

3. 250 g 10% li natriy gidroksid NaOH eritmasiga 150 g suv quyiladi. Hosil bo’lgan eritmaning konsentratsiyasi ( %) nechaga teng?

4.500 ml 0,2 eritma tayyorlash uchun necha g kaliy karbonat K₂CO₃ kerak bo’ladi?

6-Nazorat ishi

Mavzu: Oddiy va murakkab moddalarning toifalanishi, oksidlar va asoslar haqida mavzularni

unumlashtirish.

Nazorat shakli: Yozma ish

1. Quyidagi moddalarni oksid va asoslarga ajrating hamda nomlarini yozing:

Na₂O, SO₃ , Zn (OH)_{2 ,}Al₂O₃Cr(OH)₃H₂OAgOH Ca(OH)₂N₂O₅ P₂O₅ Ba(OH)₂

Mn₂O₇Al(OH)₃KOH, Cu(OH)₂

2. Quyidagi oksid va gidroksidlarning molekular formularlarini yozing: aluminiy oksidi, natriy oksidi, fosfor (III) – oksidi, magniy gidroksidi, azot (I) – oksidi, simob (II) – oksidi, qalay (IV) – oksidi, temir (III)-oksidi, mis (II)-gidroksidi, xlor (V)-oksidi, bariy gidroksidi.

3. Quyidagi o’zgarishlarni amalga oshirish uchun kerak bo’ladigan reaksiya tenglamalarini yozing:

Cr®Cr₂O₃® CrCl₃®Cr(OH)₃ ® Cr₂O₃® Cr

4. 13 g aluminiy gidroksid hosil qilish uchun qancha aluminiy kerak bo’ladi?

(4,5 g Al)

7-Nazorat ishi

Mavzu: Murakkab modda sinflarining tarkibi, xossalari va ishlatilishi mavzularini umumlashtirish

Nazorat shakli; Test

1. Qaysi holatda faqat asosli oksid olish usuli ko’rsatilgan.

A) 4P+5O₂=2P₂O₅

B)C+O₂₌CO₂

C) CaCO₃___CaO+CO₂

D) Cu (OH)₂ ___ CuO+H₂O

2. Kislotali oksidlar qatorini ko’rsating.

A) K₂O, MgO, SO₂, Na₂O

B) CO₂, P₂O₅, SO_3,,NO₂

C) ZnO, N₂O₅, AL₂O₃, H₂O

D)BaO P₂O₅, FE₂O₃ CO₂

3.Quyidagi oksidlarning qaysi birlari bilan reaksiyaga kirishadi?

1.CaO 2. SO₃ 3.FeO 4. N₂O₅ 5. Co₂ 6. ZnO.

A) 2,3,5 B) 2,4,5 C) 1,3,5 D) 3,5,6

4. Normal sharoitda 11,2 litr oltingugurt (IV)- oksid olish uchun qancha oltingugurtni yoqish kerak?

A) 16; B) 32; C) 64; D) 24;

5. Atmosfer gidroksidlar qatorini ko’rsating.

A) KOH, Mg (OH)₂, Al (OH)₃

B) Ca(OH)₂ Fe(OH)₂ Ba (OH)₂

C) Zn(OH)₂ Al(OH)₃ Cr(OH)₃

D) NaOH, ZN(OH)₂ Cu(OH)₂

6. Qaysi reaksiya suvda erimaydigan asos xossasini ifodalaydi?

A) NaOH+ CO₂ =Na CO₃ + H₂O

B) KOH+ HCl= KCl+ H₂O

C) CaO+ H₂O = Ca(OH)₂

D) 2Fe(OH)_2------Fe₂O₃ +3 H₂O

7. Qaysi moddadan bir vaqtning o’zida ham asosli, ham kislotali oksid olish mumkin?

A) CaCO₃ B) Al(OH)₃ C) H₃PO₄ D) KNO₃

8. Ohakli suv Ca(OH)₂ orqali karbonat angidirid yuborilgan 50 g oq cho’kma hosil bo’ladi. Necha litr CO₂ reaksiyaga kirishgan

A) 22,4 B) 2,24 C) 11,2 D) 1,12

9. Kislota eritmasi quyidagi indikatorlarning qaysilari ta’sirida qizaradi?

1. Lakamus 2. Fenoftalein 3. Metil zarg’aldoq

A) 1; B) 1va3; C) 2va3; D) 1va2;

10. Formulalari quyidagicha bo’lgan oksidlarning qaysi birida kislorodning massa ulushi 50% gat eng?

A) SO₃ B) CO; C) CO₂ D) SO₂

11. Sulfat kislota quyidagi moddalarning qaysilari bilan reaksiyaga kirishadi?

1. MgO 2. CO₂3. NaOH 4.SiO₂ 5. BaCl₂ 6. NO₂

A) 1,3,4,5 B) 1,3,5 C) 2,5,6 D) 2,3,5,6

12. Quyidagi keltirilgan o’zgarishdagi noma’lum X moddani aniqlang?

Al---- AlCl₃ ------ X----- Al₂O₃

A) Al₂(SO₃)₄ B)AlBr₃C) Al(OH)₃ D)Al(OH₃)₃

13. Oshqazon shirasi tarkibidagi kislotani aniqlang?

A) H₂SO₄ B) HNO₃C) HCl; D) H₂CO₃

14. Quyidagi kislotalardan qaysilari beqaror hisoblanadi?

1. H₂SO₃ 2. H₂ SO₄ 3. H₃PO₄ 4. H₂ CO₃ 5.HNO₃ 6. HCl

A) 1va4 B) 2,4va5 C) 1,3va6 D) 3,4va6

15. Quyidagi qaysi kislota eritmada cho’kma hosil bo’lishi hisobiga olinadi?

A) HNO₃ B) H₂SO₄ C) HCl; D) H₂SiO₃

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 _________

8-Nazorat Ishi
Mavzu: Oksid,asos, kislota va tuzlar mavzularini umumlashtirish.

Nazorat shakli: Tarbiyaviy masalalar yechish

Tajriba:Neytrallanish reaksiyasi

Chinni kosaga 3ml natriy gidroksid eritmasidan quying, ustiga fenoftaleindan 1-2 tomchi tomizing va eritmaning rangiga e’tibar bering., eritmaning rangi yo’qolguncha ustiga tomchilatib xlorid kislota eritmasidanquying hamda shisha tayoqcha yordamida doimo aralashtirib turing. Hosil bo’lgan eritmani spirt lampasi yordamida qizdirib va suv bug’lanib bo’lgach, tuzni ko’zdan kechiring. Reaksiya tenglamasi va tajriba xulosalarini yozing Xulosa_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Nazorat ishining bali _________

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