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Halogen compound and Synthesis Halogen

Total questions: 10

Worksheet time: 3mins

Name
Class
Date
1.

Which range presents the decreasing order of acidity?

a)

HCl > HBr >HI> HF

b)

HI > HBr > HCl > HF

c)

HF > HCl > HBr > HI

d)

HF > HI > HBr > HCl

2.

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

a)

MnO2+4HCl MnCl2 +2H2O +Cl2MnO_2+4HCl\ →MnCl_{2\ }+2H_2O\ +Cl_2\uparrow

b)

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

c)

KClO3 +6HCl KCl +3H2O + 3Cl2KClO_3\ +6HCl\ \rightarrow\ KCl\ +3H_2O\ +\ 3Cl_2\uparrow

d)

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

3.

Which are figures of Chlorine gas synthesis?

a)
b)
c)
d)
4.

Which one has negative oxidation number?

a)

HClO

b)

HClO4

c)

HBrO

d)

OF

5.

Full component of Javel solution

a)

NaCl + NaClO + H2O

b)

NaClO + H2O

c)

NaClO + HClO + H2O

d)

HCl + HClO + H2O

6.

How is Florine gas prepared?

a)

Let Calcium Flourine react with Sulfuric acid

b)

Silicate oxide reacts with hydroflouric gas

c)

Electrolyte (with membrane) the solution of Sodium Flouride

d)

Electrolyte mixture of Potassium Floride & hydroflouric

7.

Which range presents the decreasing order of oxidative property?

a)

HClO4 > HClO3 > HClO2 > HClO

b)

HClO > HClO2 > HClO3 > HClO4

c)

HClO4 > HClO2 > HClO3 > HClO

d)

HClO > HClO3 > HClO2 > HClO4

8.

Using only a reagent to distinguish these halogen ion: F-, Cl-, Br-, I-

a)

HgCl2

b)

Hg(NO3)2

c)

AgNO3

d)

AgCl

9.

Why does colorless HBr solution, put such a long time in the air, turn to brownish yellow?

a)

There is a HBr decomposition, Br2 is released

b)

HBr react with O2, which releases Br2

c)

HBr reacr with Cl2, which release Br2

10.

Which compound was used in engraving glass?

a)

HF

b)

HCl

c)

HClO

d)

HBrO