7-sinf kimyo fanidan 4-chorak II variant test savollari

Kimyo fanidan 7-sinf o’quvchilari uchun

4-chorak I -variant test savollari

1.Anorganik moddalar necha sinfga bo’linadi? A)2 B)3 D)4 E)5

2. Murakkab moddalar qatorini aniqlang

A) H₂O, H₂, O₂ B) HCl, Zn, Cl₂ D) Zn ,Cl₂, H_2; E) HCl, ZnCl₂, H₂ O

3.Suv bilan reaksiyaga kirishadigan oksidlarni aniqlang:

1.Na₂O 2.SO₂ 3.Al₂O₃ 4.P₂ O₅ 5.CrO 6.ZnO

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

4.Kimyoviy birikma deb nimaga aytiladi?

A)Ikki va undan ortiq har xil moddalarga parchalanuvchi birikmaga.

B)Bir nechta moddadan tashkil birikmaga;

D) Faqat ikki xil elementdan tashkil topgan birikmaga..

E)Bir necha xil molekulalardan tashkil topgan birikmaga

5.Tabiatda gaz holatda uchraydigan elementlarni ko’rsating.

A)Na,H₂, N₂,O₂: B)N₂,Cl₂,H₂, O₂: D)S, O₂, N₂, P E)J₂, H₂, K,Ba.

6.Kislotali oksidlar qatorini ko’rsating?

A)K₂ O,MgO,SO₂,Na₂ O D)ZnO,N₂ O₅,Al₂ O₃, H₂ O

B)CO₂,P₂ O₂, SO₃, NO₂ BaO,P₂ O₅,Fe₂ O₃,CO₂

7.Amfoter gidrooksidlar qatorini ko’rsasing:

A)KOH,Mg(OH) ₂, Al(OH) ₃ D)Zn(OH) ₂, Al(OH) ₃, Cr(OH) ₃

B)Ca(OH) _2,Fe(OH) ₂, Ba(OH) ₂ E)NaOH, Zn(OH) ₂, Cu(OH) ₂

8. Ushbu reaksiya turini aniqlang Zn+2HCl=ZnCl₂+H_2;

A)Birikish B) O’rin olish D)Parchalanish E) Almashinish

9.Ammiakning grafik formulasida nechta bog’ bor? A)2 B)3 D)4 E)6

10.Kislorodning ekvivalent massasi nechaga teng? A)4 B)32 D)16 E)8

11.Quyidagi kislotalardan 3- negizli kislotani ko’rsating?

A)HCl B)H₂SO₄ D)H₃PO₄ E)H₂CO₃

12.Ohaktoshni formulasini ko’rsating?

A)CaO B)Ca(OH)₂ D)KOH E) CaCO₃

13. Osh tuzini formulasini ko’rsating?

A)NaOH B)NaCl D) NaHCO₃ E) KOH

14.Quyidagilardan qaysi biri asosli oksid ? A) P₂0₅ B) CaO D) CO₂ E) Al₂O₃

15.Asosli oksidlar qatorini ko'rsating?

A)K₂0 MgO S0₂ Na₂0 B)ZnO N₂0_S AI₂0₃ H₂0

D) K₂0 MgO BaO Na₂0 E)BaO P₂0_S Fe₂0₃ CO ₃

16.Quyidagi kislotalarning qaysi birida kislota hosil qiluvchi elementning valentligi beshga teng?

A)H₂SO₃ B)HMnO₄ D)H₂CrO₄ E)H₃PO₄

17.Quyidagi tuzlardan magniygidroksobromidni ko’rsating

A) Mg(OH)Br B) Mg(OH)₂ D) MgBr₂ E) Al(OH)SO₄

18.Tuzlarning umumiy formulasini ko’rsating.

A) HnK B) M(OH)n D) MnKm E) E₂On

19.Tuzlar nechaga toifalanadi.

A)2 xil: O’rta tuzlarga va asosli tuzlarga B)2 xil: Nordon tuzlarga va aralash tuzlarga

D)Tuzlar toifalanmaydi. E) 3xil: O’rta tuzlarga, nordon tuzlarga, asosli tuzlarga

20.0shqozon shirasi tarkibidagi kislotani aniqlang.

A) H₂S0₄ B)HN0₃ D) HCI E)H₂C0₃

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

A)CaCO₃ B)Al(OH) ₃ D)H ₃PO₄ E)KNO₃

22. 28g CaO ni hosil qilish uchun qancha ohaktosh CaCO₃ ni kuydirish kerak?

A)100 B)50 D)60 E)80

23.Xona haroratida azot bilan reaksiyaga kirishadigan metallni ko’rsating:

A) Ca; B) Al; D)Li: E) Fe;

24.Formulalari quyidagicha bo’lgan oksidlarning qaysi birida kislorodning massa ulushi 50% ga teng ?

A)SO₃ B)CO CO₂ E)SO₂

25.Qaysi elementning metalmaslik xossalari kuchliroq? A)S; B) F; D) N; E) O.

Kimyo fanidan 7-sinf o’quvchilari uchun

4-chorak I -variant test savollari
JAVOBLARI
1-D

2-E

3-A

4-A

5-B

6-B

7-D

8-B

9-B

10-E

11-D

12-E

13-B

14-B

15-D

16-E

17-A

18-D

19-E

20-D

21-A

22-B

23-D

24-E

25-B