តេស្តខ្លីថ្នាក់ទី១២ (២)
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
Seng Rom
Used 9+ times
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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
ក្នុងចំណោមសមាសធាតុខាងក្រោម តើណាខ្លះដែលមិនរលាយក្នុងទឹក?
BaSO4
AgCl
K3PO4
CaCO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ហេតុអ្វីបានជាគេថា អាម៉ូញ៉ាក់ជាបាស?
ព្រោះវាផ្តល់អុីដ្រូញ៉ូមក្នុងទឹក
គ្មានចម្លើយ
ព្រោះវាផ្តល់អុីយ៉ុងអុីដ្រុកស៊ីតក្នុងទឹក
មិនចង់ឆ្លើយ
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
គេមានរូបមន្តទូទៅៈ R1 -CO -NH2
សមាសធាតុនេះ គឺជា............................
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
សមីការគីមីៈ CaCO3 + 2HCl -> CaCl2 + H2O + CO2
សមីការអុីយ៉ុងសម្រួលគឺ
Ca2+ + CO32- + 2H+ + 2Cl- -> CaCl2 + H2O + CO2
Ca2+ + CO32- + 2H+ + 2Cl- -> Ca2+ + 2Cl- + H2O + CO2
CaCO3 + 2H+ + 2Cl- -> CaCl2 + H2O + CO2
CaCO3 + 2H+ -> Ca2+ + H2O + CO2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
សមីការគីមីៈ 2MnO4- + 5H2C2O4 + 6H+ -> 2Mn2+ + 10CO2 + 8H2O
ប្រភេទគីមីដែលជាអុកស៊ីតករខ្លាំងគឺ.........រេដុករខ្លាំងគឺ.........
H2C2O4 និង MnO4-
Mn2+ និង H2C2O4
MnO4- និង H2C2O4
មិនដឹងទេ
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ចូរសរសេរសមីការតាងប្រតិកម្មរវាង អាស៊ីតអេតាណូអុិច និង1-ប្រូប៉ាណុល។
CH3COOCH2CH2CH3 + H2O <-> CH3 -COOH + CH3CH2CH2OH
CH3CH2OH + CH3 -COOH <-> CH3COOCH2CH3 + H2O
CH3CH2CH2OH + CH3COOH <-> CH3COOCH2CH2CH3 + H2O
CH3COOH + CH3CH2OH <-> CH3COOCH2CH3 + H2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
រូបមន្តស្ទើរលាតនៃ មេទីល អេទីល អាសេតាត គឺ
CH3 -COO -CH2 -CH3
H -COO -CH(CH3) -CH3
គ្មានចម្លើយ
CH3 -COO -CH(CH3) -CH3
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