
тест 9 кл
Authored by Зарина Ашыралиева
Chemistry
KG
Used 3+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Лабораторияда кѳмүртек (IV) оксидин аныктоодо колдонулуучу кошулманын эритмеси:
калий гидроксиди
кальций гидроксиди
күкүрт кислотасы
туз кислотасы
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Кѳмүртектин (IV) оксидин аныктай турган зат кайсы?
Ca(OH)2
Na2CO3
H2SO4
NaOH
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
0,2 моль орто фосфор кислотасынын массасын аныктагыла.
27,2г
28,4г
14,8г
19,6г
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Кычкылдануу даражасы –4, +2, +4 болгон экинчи мезгилде жайгашкан элементти кѳрсѳткүлѳ:
азот
фосфор
комуртек
кукурт
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Акиташ менен актагандан кийин, ал кургаганда кайсы зат пайда болот?
Ca(OH)2
CaO
CaCO3
CO2
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
1 моль алюминий карбидин гидролизге учуратканда канча л метан бѳлүнүп чыгат?
28
22,4
33,6
67,2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Айнектин составы: Na2O·CaO·6SiO2 заттарынан турат. Бул составда кремнийдин проценттик кармалышы канча?
48
44
30
35
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