រំលឹកមេរៀនថ្នាក់ទី១២ បំប៉ន (ដ)
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Medium
Seng Rom
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11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ហេតុអ្វីបានជាល្បឿនប្រតិកម្មប្រព្រឹត្តទៅលឿននៅពេលចាប់ផ្តើម?
ព្រោះបរិមាណអង្គធាតុប្រតិករមានអតិបរមានៅពេលដំបូង
ព្រោះបរិមាណអង្គធាតុប្រតិករមានអប្បបរមានៅពេលដំបូង
ព្រោះបរិមាណអង្គធាតុកកើតមានអតិបរមានៅពេលដំបូង
ព្រោះវាចង់ប្រព្រឹត្តទៅលឿន
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
សមីការគីមីៈ Fe + CuSO4 -> FeSO4 + Cu
តើប្រភេទគីមីណាខ្លះដែលជាកករ?
Fe
CuSO4
FeSO4
Cu
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
ចូរបំពេញសមីការគីមីៈ CaCl2 + .................-> PbCl2 + Ca(NO3)2
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
តើសមាសធាតុខាងក្រោមណាខ្លះដែលជាឧស្ម័ន?
SO2
SO3
CO2
H2SO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
សមីការគីមីៈ 2MnO4- + 5H2C2O4 + 6H+ -> 2Mn2+ + 8H2O + 10CO2
នៅខណៈ t ល្បឿនកំណ CO2 គឺ 0.0050M/s ចូរគណនាល្បឿនខណៈ បំបាត់ H2C2O4។
0.0100M/s
0.00250M/s
0.0010M/s
0.0250M/s
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
សមីការគីមីៈ 2MnO4- + 5H2C2O4 + 6H+ -> 2Mn2+ + 8H2O + 10CO2
នៅខណៈ t ល្បឿនកំណ CO2 គឺ 0.0050M/s ចូរគណនាល្បឿនខណៈ បំបាត់ MnO4-។
0.005M/s
0.01M/s
0.0010M/s
0.02500M/s
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
សមីការគីមីៈ 2MnO4- + 5H2C2O4 + 6H+ -> 2Mn2+ + 8H2O + 10CO2
តើប្រភេទគីមីណាមួយដែលជារេដុករខ្លាំង?
MnO4-
H2C2O4
H+
Mn2+
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