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Quiz 1 chem 6/5

Authored by Wanon Pooyoo

Chemistry

9th - 12th Grade

Used 2+ times

Quiz 1 chem 6/5
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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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