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30 talik test -2

Authored by Bobomurod Abdixashimov

Chemistry

11th Grade

Used 1+ times

30 talik test -2
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quyida berilgan qaysi tuzning suvdagi eritmasi lakmusni qizil rangga bo’yaydi.?

HCOOK

CuCl2

CaCl2

NaNO3

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Na2CO3.xH2O kristallogidrati qizdirilishi natijasida hosil bo’lgan qattiq qoldiqning massalari vaqtga nisbatan grafikda berilgan. x ning qiymatini aniqlang.?

2

4

5

10

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Quyida berilgan qaysi reaksiya birikish reaksiyasi hisoblanadi.?

1. K2O + H2O –––>

2. NO2 + H2O ––––>

3. SO3 + H2O –––––>

4. KOH  + HCl ––––>

1,2

3,4

1,3

2,4

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Birikmasida massa jihatidan 20 % X bo’lsa, Y ni nisbiy atom massasini aniqlang.?

40

24

120

32

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Quyida qaysi moddalarga vodorod tasir e'ttirilganda birlamchi spirt hosil bo'ladi.?

I

III

I,II

I,III

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

C2H4 va C4H10 dan iborat aralashmaning 5 molining to’liq yonishi uchun 22 mol O2 sarflangan bo’lsa, aralashmadagi etilenning miqdorini (mol) aniqlang.?

1

2

3

4

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

2 CO + O2<–––>2CO2 + Q reaksiyada bosim va harorat qanday qilib muvozanatni o’ngga siljitadi.?

Bosim-ortishi

Harorat-kamaytirish

Bosim-ortishi

Harorat-ortishi

Bosim-kamaytirish

Harorat-ortishi

Bosim-kamaytirish

Harorat-kamaytirish

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