Quiz 1 chem 6/5
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Wanon Pooyoo
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ข้อใดไม่ใช่กรดแก่
HCl
HClO
HNO3
H2SO4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
กรดข้อใดมีค่าคงที่การแตกตัว
HF
HClO4
HI
HBr
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
H2CO3 + H2O <--> H3O+ + HCO3-
จากสมการข้างต้น ขอใดเป็นคู่กรดคู่เบสกัน
H2CO3 - H2O
HCO3- - H2CO3
H3O+ - H2O
H3O+ - HCO3-
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
NH3 + H2O <----> NH4+ + OH-
HBr + H2O --> H3O+ + Br-
HNO3 + H2O --> H3O+ + NO3-
C6H5COOH + H2O <----> H3O+ + C6H5COO-
ข้อใดต่อไปนี้บอกคู่กรดคู่เบสไม่ถูกต้อง
NH3 - NH4+
HBr - Br-
HNO3 - NO3-
C6H5COOH - C6H5COO-
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
ข้อใดสนับสนุนทฤษฎีของอาร์เรเนียสเท่านั้น
NH3 + BF3 --> NH3BF3
NF3 + AlCl3 --> NF3AlCl3
H2SO4 --> H3O+ + SO42-
HCl + H2O --> H3O+ + Cl-
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ข้อใดคือคู่กรดของ H2PO4-
H3PO4
H2O
PO43-
HPO42-
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ข้อใดคือคู่เบสของ NH3
NH4+
NH2-
NH3
NH22-
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