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Periodic Table and Electrolysis Quiz

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

The modern periodic table is arranged in order of increasing:

a)

Atomic mass

b)

Atomic number

c)

Atomic weight

d)

Density

2.

Elements in the same group of the periodic table have similar:

a)

Physical properties

b)

Chemical properties

c)

Atomic mass

d)

Density

3.

Which group is known as the noble gases?

a)

Group I

b)

Group II

c)

Group VIII (or Group 18)

d)

Group VII

4.

Which of the following elements is a halogen?

a)

Oxygen

b)

Chlorine

c)

Nitrogen

d)

Carbon

5.

The horizontal rows of the periodic table are called:

a)

Groups

b)

Periods

c)

Families

d)

Blocks

6.

Which of these is the lightest alkali metal?

a)

Potassium

b)

Sodium

c)

Lithium

d)

Rubidium

7.

Transition metals are found in which block of the periodic table?

a)

s-block

b)

p-block

c)

d-block

d)

f-block

8.

Which of these is a metalloid?

a)

Boron

b)

Silicon

c)

Germanium

d)

All of the above

9.

The periodic table was first arranged by:

a)

Mendeleev

b)

Moseley

c)

Newlands

d)

Dalton

10.

Which of these is an alkaline earth metal?

a)

Sodium

b)

Magnesium

c)

Aluminium

d)

Barium

11.

Which property generally increases down a group?

a)

Electronegativity

b)

Ionization energy

c)

Atomic radius

d)

Density

12.

Which of these elements has the highest electronegativity?

a)

Oxygen

b)

Fluorine

c)

Chlorine

d)

Nitrogen

13.

Noble gases are chemically inert because:

a)

They have full outer shells

b)

They are non-metals

c)

They are gases

d)

They have low reactivity

14.

The element with atomic number 20 is:

a)

Sodium

b)

Calcium

c)

Potassium

d)

Magnesium

15.

The first element in the periodic table is:

a)

Helium

b)

Hydrogen

c)

Lithium

d)

Beryllium

16.

The most metallic element is found at:

a)

Top right of the table

b)

Bottom left of the table

c)

Middle of the table

d)

Top left of the table

17.

Which of these is NOT a transition element?

a)

Iron

b)

Copper

c)

Sodium

d)

Zinc

18.

Which period contains the halogen iodine?

a)

Period 3

b)

Period 4

c)

Period 5

d)

Period 6

19.

The atomic number of Argon is:

a)

16

b)

17

c)

18

d)

19

20.

Across a period, atomic radius:

a)

Increases

b)

Decreases

c)

Remains constant

d)

Varies

21.

Which element is in Group 1 and Period 3?

a)

Potassium

b)

Sodium

c)

Lithium

d)

Rubidium

22.

Which of these is NOT a property of alkali metals?

a)

They are soft

b)

They are good conductors

c)

They are poor conductors of electricity

d)

They react with water

23.

Which element is used in making semiconductor devices?

a)

Silicon

b)

Germanium

c)

Gallium

d)

All of the above

24.

The number of periods in the modern periodic table is:

a)

6

b)

7

c)

8

d)

9

25.

Which of these is a non-metal?

a)

Iron

b)

Sulphur

c)

Copper

d)

Zinc

26.

The process of decomposition of a substance by electricity is called:

a)

Electrolysis

b)

Electroplating

c)

Electrochemical reaction

d)

Electrostatic discharge

27.

The positive electrode in electrolysis is called:

a)

Cathode

b)

Anode

c)

Electrolyte

d)

Electrode

28.

During electrolysis, cations move to the:

a)

Anode

b)

Cathode

c)

Electrolyte

d)

Electrode

29.

Which of these is an example of an electrolyte?

a)

Sugar solution

b)

Sodium chloride solution

c)

Distilled water

d)

Alcohol

30.

Electrolysis of brine produces:

a)

Sodium hydroxide and chlorine

b)

Hydrogen and oxygen

c)

Sodium and chlorine

d)

Chlorine and water

31.

Faraday’s first law of electrolysis states that the mass deposited is proportional to:

a)

Voltage

b)

Current

c)

Quantity of electricity

d)

Time

32.

In the electrolysis of copper (II) sulphate solution using copper electrodes, the anode:

a)

Increases in mass

b)

Decreases in mass

c)

Remains the same

d)

Vaporizes

33.

During electrolysis, ions that gain electrons are said to be:

a)

Oxidized

b)

Reduced

c)

Neutralized

d)

Ionized

34.

Electroplating is an application of:

a)

Electrolysis

b)

Electrochemical reaction

c)

Electrostatic discharge

d)

Electromagnetism

35.

In the electrolysis of acidified water, the gas collected at the cathode is:

a)

Oxygen

b)

Hydrogen

c)

Nitrogen

d)

Carbon dioxide

36.

Which substance is added to water to make it conduct electricity during electrolysis?

a)

Sodium chloride

b)

Sugar

c)

Alcohol

d)

Vinegar

37.

The unit of electrochemical equivalent is:

a)

g/C

b)

kg/C

c)

mol/C

d)

L/C

38.

Which electrode reaction occurs at the anode in the electrolysis of copper (II) sulphate solution with inert electrodes?

a)

2H₂O → O₂ + 4H⁺ + 4e⁻

b)

2OH⁻ → H₂O + ½O₂ + 2e⁻

c)

Cu²⁺ + 2e⁻ → Cu

d)

None of the above

39.

Which law relates the quantity of charge to the amount of substance liberated?

a)

Ohm's law

b)

Faraday’s law

c)

Avogadro's law

d)

Boyle's law

40.

In electroplating of silver, the article to be plated is made the:

a)

Anode

b)

Cathode

c)

Electrolyte

d)

Electrode

41.

Which of the following gases is liberated at the anode during electrolysis of concentrated NaCl solution?

a)

Hydrogen

b)

Chlorine

c)

Oxygen

d)

Nitrogen

42.

The mass of a substance deposited by 1 Faraday of electricity is equal to its:

a)

Molar mass

b)

Equivalent mass

c)

Atomic mass

d)

Molecular mass

43.

Which of the following is NOT a product of the electrolysis of brine?

a)

Sodium hydroxide

b)

Chlorine

c)

Hydrogen

d)

Oxygen

44.

Which of these statements is correct?

a)

Electrolysis involves redox reactions

b)

Electrolysis is a physical change

c)

Electrolysis is a chemical change

d)

Both a and c

45.

The charge on 1 mole of electrons is:

a)

9.65 × 10⁴ C

b)

1.6 × 10⁻¹⁹ C

c)

6.02 × 10²³ C

d)

1 C

46.

Electrolytes conduct electricity due to the presence of:

a)

Electrons

b)

Protons

c)

Mobile ions

d)

Neutrons

47.

Which metal is extracted by electrolysis of bauxite?

a)

Iron

b)

Copper

c)

Aluminium

d)

Zinc

48.

In the electrolysis of dilute H₂SO₄, the volume ratio of gases collected at cathode to anode is:

a)

1:1

b)

2:1

c)

3:1

d)

4:1

49.

Which of the following will NOT conduct electricity in liquid state?

a)

Salt solution

b)

Sugar solution

c)

Pure water

d)

Alcohol

50.

The process of purifying metals using electrolysis is called:

a)

Electrolysis

b)

Electroplating

c)

Refining

d)

Electrochemical reaction

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