
30 talik test -2
Authored by Bobomurod Abdixashimov
Chemistry
11th Grade
Used 1+ times

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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
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
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
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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