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Kimyo

Authored by Karomaddin Urozboyev

Chemistry

9th Grade

Used 6+ times

Kimyo
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hozirgi kunda davriy sistemada nechta element mavjud?

117

118

120

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Atmosfera havosi tarkibida necha foiz kislorod bor?

21%

78%

99%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kislorodni kim kashf qilgan?

Kavendish

K.Shele

Lavuarye

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fotosintez jarayonida atmosferaga qaysi gaz ajralib chiqadi?

N(2)

H(2)

O(2)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Avogadro soni nechaga teng?

6.02*10^23

6.02*10^20

22.4*10^23

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kalsiy karbonatning formulasini toping?

CaCO(3)

K(2)CO(3)

H(2)CO(3)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suyuq holatdan gaz holatiga o'tish nima deb ataladi?

Qotish

Cho'kish

Bug'lanish

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