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Trần Hải Anh

Authored by HẢI ANH

Chemistry

10th Grade

Used 1+ times

Trần Hải Anh
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nguyên tố hóa học nào sau đây thuộc nhóm halogen?

Chlorine

Oxygen

Nitrogen

Carbon

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which are figures of Chlorine gas synthesis?

Media Image
Media Image
Media Image
Media Image

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Bromite

BrO4−1BrO_4^{-1}  

BrO3−1BrO_3^{-1}  

BrO2−1BrO_2^{-1}  

BrO−1BrO^{-1}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Full component of Javel solution

NaCl + NaClO + H2O

NaClO + H2O

NaClO + HClO + H2O

HCl + HClO + H2O

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fluoride

F−1F^{-1}  

FO−1FO^{-1}  

FO2−1FO_2^{-1}  

FO3−1FO_3^{-1}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which is the reaction that was applied in industrial synthesis of Chlorine gas?

MnO2+4HCl →MnCl2 +2H2O +Cl2↑MnO_2+4HCl\ →MnCl_{2\ }+2H_2O\ +Cl_2\uparrow

2KMnO4 +16HCl → 2KCl +2MnCl2 +8H2O +5Cl22KMnO_4\ +16HCl\ \rightarrow\ 2KCl\ +2MnCl_2\ +8H_2O\ +5Cl_2

KClO3 +6HCl → KCl +3H2O + 3Cl2↑KClO_3\ +6HCl\ \rightarrow\ KCl\ +3H_2O\ +\ 3Cl_2\uparrow

2NaCl + 2H2O electrolyte wt membrane→ H2↑ +Cl2↑ + 2NaOH2NaCl\ +\ 2H_2O\ _{\overrightarrow{electrolyte\ wt\ membrane}}\ \ H_2\uparrow\ +Cl_2\uparrow\ +\ 2NaOH

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fluorite

FO4−1FO_4^{-1}  

FO3−1FO_3^{-1}  

FO2−1FO_2^{-1}  

FO−1FO_{ }^{-1}  

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