Free Printable Trần Hải Anh

1.

Nguyên tố hóa học nào sau đây thuộc nhóm halogen?

a)

Chlorine

b)

Oxygen

c)

Nitrogen

d)

Carbon

2.

Which are figures of Chlorine gas synthesis?

a)

b)

c)

d)

3.

Bromite

a)

$BrO_4^{-1}$

b)

$BrO_3^{-1}$

c)

$BrO_2^{-1}$

d)

$BrO^{-1}$

4.

Full component of Javel solution

a)

NaCl + NaClO + H₂O

b)

NaClO + H₂O

c)

NaClO + HClO + H₂O

d)

HCl + HClO + H₂O

5.

Fluoride

a)

$F^{-1}$

b)

$FO^{-1}$

c)

$FO_2^{-1}$

d)

$FO_3^{-1}$

6.

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

a)

$MnO_2+4HCl\ →MnCl_{2\ }+2H_2O\ +Cl_2\uparrow$

b)

$2KMnO_4\ +16HCl\ \rightarrow\ 2KCl\ +2MnCl_2\ +8H_2O\ +5Cl_2$

c)

$KClO_3\ +6HCl\ \rightarrow\ KCl\ +3H_2O\ +\ 3Cl_2\uparrow$

d)

$2NaCl\ +\ 2H_2O\ _{\overrightarrow{electrolyte\ wt\ membrane}}\ \ H_2\uparrow\ +Cl_2\uparrow\ +\ 2NaOH$

7.

Fluorite

a)

$FO_4^{-1}$

b)

$FO_3^{-1}$

c)

$FO_2^{-1}$

d)

$FO_{ }^{-1}$

8.

ếu tố nào dưới đây đã được sử dụng để làm tăng tốc độ của phản ứng rắc men vào tinh bột đã được nấu chín (cơm, ngô, khoai, sắn) để ủ rượu?

a)

Nhiệt độ

b)

Chất xúc tác

c)

Nồng độ

d)

Áp suất

9.

What is the name of this polyatomic ion: H₂PO₄^-

a)

phosphate

b)

hydrogen phosphate

c)

hydrogen phosphooxide ion

d)

dihydrogen phosphate

10.

What is the name of this polyatomic ion: MnO₄^-

a)

Manganate

b)

Manganite

c)

Permanganate

11.

Cho quá trình Al → Al³⁺+ 3e, đây là quá trình

a)

khử

b)

oxi hóa

c)

tự oxi hóa – khử

d)

nhận proton

12.

How many electrons does this magnesium ion have?

a)

24

b)

12

c)

10

d)

14

13.

B and C are found in the ______ of an atom.

a)

Energy levels

b)

Space

c)

Nucleus

d)

Outside

14.

How many protons does this atom have?

a)

2.5

b)

6

c)

5

d)

10.811

15.

How many neutrons does the isotope of lithium have?

a)

8

b)

3

c)

4

d)

5

16.

The given diagram of experimental set-up is used to carry out:

a)

Distillation of water

b)

Purification of water

c)

Electrolysis of water

d)

Hydrolysis

17.

If ∆H is negative, the reaction is?

a)

exothermic

b)

endothermic

18.

The energy level diagram for the reaction between magnesium and hydrochloric acid is shown.

a)

Energy is given out during the reaction

b)

The products are at a lower energy level than the reactants

c)

The reaction is endothermic.

19.

An atom has an atomic number of 17. How many electrons would there be on each shell? (From inner to outer shell)

a)

2, 10, 5

b)

8, 8, 1

c)

2, 8, 7

d)

8, 7, 2

20.

The electronic structures of atoms P and Q are shown. P and Q react to form an ionic compound. What is the formula of this compound?

a)

Q₂P

b)

P₂Q

c)

P₂Q₆

d)

Q₂P₆

21.

What are the 3 particles that make-up the atom?

a)

protons, neutrons, and isotopes

b)

neutrons, isotopes, and electrons

c)

positives, negatives, and electrons

d)

protons, neutrons, and electrons

22.

To extract a pure dry salt from a soluble salt solution, which method (s) do we use?

a)

Crystallisation

b)

Chromatography

c)

Titration

d)

Filtration

23.

Which of these is a way to calculate the mean rate of a reaction?

a)

Multiply the time taken by the amount of product formed

b)

Divide the quantity of reactant used or product made by the time taken for the reaction to happen

24.

What gas is produced from a reaction of a metal with an acid?

a)

Hydrogen

b)

Oxygen

c)

Carbon dioxide

d)

Water Vapour

25.

Carbon and Oxygen combine to form CO₂. If 10g of Carbon combines with Oxygen to produce 20g of CO₂ and 10g of Oxygen combines with Carbon to produce 15g of CO₂, How many grams of CO₂ are actually produced?

a)

20g of CO₂

b)

15g of CO₂

c)

17.5g of CO₂

d)

35g of CO₂

Trần Hải Anh

Total questions: 25

Worksheet time: 19mins

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