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2-DARS savollari

Authored by Asilbek Tojimatov

Chemistry

Used 6+ times

2-DARS savollari
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51 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Kim kimyoviy belgi – elementlarning lotincha nomining bosh harfi yoki bosh harfiga keyingi harflardan birini qo’shib yozishni taklif qilgan?

Berselius

Butlerov

Bertlo

Bertolle

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Element so’zining ma’nosi?

kichik

oddiylik

tarkibiy qism

kam

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Elementlar fizik jihatdan qanday bo’ladi?

metal va metalmas 

metal va amfoter

metalmas va amfoter

metal, metalmas va amfoter

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Elementlar kimyoviy jihatdan qanday bo’ladi?

metal va metalmas

metal va amfoter

metalmas va amfoter

metal, metalmas va amfoter

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Quyidagi ifodalarning (A) element yoki (B) oddiy moddaga tegishli ekanligini aniqlang

1. Soch tarkibida oltin mavjud

2. Havo tarkibida kislorod bor

3. Suvda tarkibida vodorod bor

A-1,2,3

A-1,2; B-3   

A-1,3; B-2

B-1,2,3

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Quyidagi ifodalarning (A) element yoki (B) oddiy moddaga tegishli ekanligini aniqlang

1. Osh tuzi tarkibida natriy bor

2. Baliqlar suvda erigan kislorod bilan nafas oladi

3. Suyak tarkibiga fosfor kiradi

A-1,2,3   

A-1,3; B-2

A-2; B-1,3

B-1,2,3

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Quyidagi ifodalarning (A) element yoki (B) oddiy moddaga tegishli ekanligini aniqlang

1. Aluminiyning 3 ta valent elektronlari bor

2. Temir zang tarkibiga kiradi

3. Temir nam havoda zanglaydi

A-1,2,3

A-3; B-1,2

A-1,2; B-3

B-1,2,3

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