Non-Metals: Properties, Applications, and Exam Preparation

Question 1

How can we ensure the sustainable use of non-metal resources?

Accepted Answer

We should recycle and reuse non-metal products to reduce waste and conserve resources.

Answer

Non-metals are renewable, so we don't need to worry about their sustainability.

Answer

We should mine and extract as many non-metals as possible to meet demand.

Answer

We should replace non-metals with synthetic materials to reduce environmental impact.

Question 2

How can the mining and production of non-metals affect the environment?

Accepted Answer

They can harm the environment by causing habitat loss, pollution, and greenhouse gases.

Answer

They are harmless to the environment.

Answer

They have no impact on the environment.

Answer

They are only found in small amounts in the Earth's crust.

Question 3

In the early days of chemistry, non-metals were defined as elements that produce what when burned?

Accepted Answer

Heat and light

Answer

Shiny surfaces

Answer

Negative ions

Answer

Gaseous form

Question 4

Which technological breakthrough in the mid-20th century significantly enhanced our understanding of non-metals?

Accepted Answer

Advancements in spectroscopy

Answer

Development of the periodic table

Answer

Discovery of new elements

Answer

Refinement of chemical synthesis techniques

Question 5

Which technology, emerging around the early 20th century, transformed our understanding of non-metals' properties and applications?

Accepted Answer

X-ray diffraction, providing insights into the atomic structure of matter

Answer

Telescope, enabling direct observation of distant celestial bodies

Answer

Mass spectrometer, facilitating precise mass determination of elements and molecules

Answer

Electron microscope, allowing visualization of materials' ultrastructure

Question 6

Question:

How does the atomic structure of fluorine contribute to its high chemical reactivity and its use in various industrial applications?

Accepted Answer

Fluorine's small atomic radius and high electronegativity make it a highly reactive element, enabling it to form compounds with other elements.

Answer

Fluorine's large atomic radius and low electronegativity make it a relatively unreactive element.

Answer

Fluorine's outermost electron shell is filled, making it a chemically inert element.

Answer

Fluorine's atomic structure is not related to its chemical reactivity or industrial applications.

Question 7

How does the electronegativity of non-metals influence their chemical reactivity and the types of compounds they form? Explain your answer.

Accepted Answer

The higher the electronegativity of a non-metal, the more likely it is to form covalent bonds with other non-metals.

Answer

Non-metals have high electronegativity, making them reactive and forming ionic compounds with metals.

Answer

Non-metals have low electronegativity, making them unreactive and forming only ionic compounds.

Answer

Electronegativity has no influence on the chemical reactivity or types of compounds formed by non-metals.

Question 8

Non-metal mining and processing can have environmental and health impacts. Discuss these impacts and suggest strategies to reduce their negative effects.

Accepted Answer

Short-term impacts include noise, dust, and habitat loss, while long-term impacts include soil and water contamination.

Accepted Answer

Strategies to minimize negative impacts include sustainable mining practices, pollution control measures, and promoting the use of recycled non-metals.

Answer

Non-metal mining and processing have no environmental or health impacts.

Answer

Health risks only affect miners and workers in processing facilities.

Question 9

Which non-metal is used in the production of microchips (computer chips)?

Accepted Answer

Silicon

Answer

Carbon

Answer

Nitrogen

Answer

Oxygen

Question 10

Which of the following is a covalent compound formed between two non-metals?

Accepted Answer

Hydrogen chloride

Answer

Sodium chloride

Answer

Calcium oxide

Answer

Water

Question 11

What is the formula of the oxide formed when carbon reacts with oxygen?

Accepted Answer

CO2

Answer

CO

Answer

C2O

Answer

C2O2

Question 12

Which non-metal is commonly used as a disinfectant?

Accepted Answer

Chlorine

Answer

Iodine

Answer

Bromine

Answer

Fluorine

Question 13

Graphite, diamond, and fullerenes are all examples of what?

Accepted Answer

Allotropes

Answer

Isomers

Answer

Isotopes

Answer

Mixtures

Question 14

Which non-metal is a noble gas?

Accepted Answer

Helium

Answer

Nitrogen

Answer

Oxygen

Answer

Carbon

Question 15

Which of the following properties is characteristic of non-metals?

Accepted Answer

Brittleness

Answer

Malleability

Answer

Ductility

Answer

High electrical conductivity

Question 16

Which of the following non-metal elements exists as a gas at room temperature?

Accepted Answer

Nitrogen

Answer

Carbon

Answer

Oxygen

Answer

Sodium

Question 17

Which non-metal is used as a semiconductor in electronics?

Accepted Answer

Silicon

Answer

Carbon

Answer

Phosphorus

Answer

Chlorine

Question 18

Which of the following non-metals is a diatomic molecule?

Accepted Answer

Nitrogen

Answer

Helium

Answer

Carbon dioxide

Answer

Methane

Question 19

Which of the following is true about the reactivity of non-metals?

Accepted Answer

They react easily with metals.

Answer

They react slowly with metals.

Answer

They do not react with metals.

Answer

They react only with noble gases.

Question 20

Which non-metal is used as a fuel?

Accepted Answer

Hydrogen

Answer

Chlorine

Answer

Phosphorus

Answer

Bromine

Question 21

Which of the following non-metals is a solid at room temperature?

Accepted Answer

Iodine

Answer

Bromine

Answer

Fluorine

Answer

Oxygen

Question 22

Which of the following is a chemical property of non-metals?

Accepted Answer

They can form covalent bonds.

Answer

They have high melting points.

Answer

They are malleable.

Answer

They are good conductors of heat.

Question 23

Which non-metal is used in the manufacture of glass?

Accepted Answer

Silicon

Answer

Carbon

Answer

Nitrogen

Answer

Oxygen

Question 24

Which of the following is NOT a characteristic of non-metals?

Accepted Answer

Shiny surfaces

Answer

Poor conductors of heat

Answer

Low density

Answer

Brittle

Question 25

Which of the following is an example of a non-metal used in modern technology?

Accepted Answer

Silicon in transistors

Answer

Iron in bridges

Answer

Copper in electrical wires

Answer

Aluminium in car bodies

Question 26

Which of the following is a noble gas?

Accepted Answer

Neon

Answer

Oxygen

Answer

Chlorine

Answer

Phosphorus

Question 27

Which of the following is a metalloid?

Accepted Answer

Boron

Answer

Sodium

Answer

Chlorine

Answer

Argon

Question 28

Which of the following is a physical change that can occur to a non-metal?

Accepted Answer

Melting

Answer

Burning

Answer

Reacting with acid

Answer

Ionizing

Question 29

Graphite and diamond are examples of:

Accepted Answer

Allotropes of carbon

Answer

Isotopes of carbon

Answer

Ionic compounds

Answer

Covalent compounds

Question 30

In the production of semiconductors, which non-metal is commonly used?

Accepted Answer

Silicon

Answer

Carbon

Answer

Nitrogen

Answer

Oxygen

Question 31

What is the chemical symbol for fluorine?

Accepted Answer

F

Answer

Cl

Answer

Br

Answer

I

Question 32

Which of the following is a characteristic of non-metals?

Accepted Answer

Low thermal conductivity

Answer

High electrical conductivity

Answer

Malleable

Answer

Solid state at room temperature

Question 33

What is the chemical symbol for chlorine?

Accepted Answer

Cl

Answer

Cr

Answer

C

Answer

H

Question 34

Which of the following is NOT a noble gas?

Accepted Answer

Carbon dioxide

Answer

Helium

Answer

Oxygen

Answer

Nitrogen

Question 35

What is the oxidation state of chlorine in the compound NaCl?

Accepted Answer

-1

Answer

+1

Answer

0

Answer

+7

Question 36

Which of the following is a covalent compound?

Accepted Answer

Water

Answer

Sodium chloride

Answer

Carbon dioxide

Answer

Iron oxide

Question 37

What is the process by which a non-metal loses electrons?

Accepted Answer

Oxidation

Answer

Reduction

Answer

Neutralization

Answer

Sublimation

Question 38

What is the most common use of nitrogen gas?

Accepted Answer

Fertilizers

Answer

Refrigerants

Answer

Anesthetics

Answer

Rocket fuel

Question 39

Which of the following is a non-metal?

Accepted Answer

Chlorine

Answer

Iron

Answer

Sodium

Answer

Aluminum

Question 40

Which of the following is a noble gas?

Accepted Answer

Helium

Answer

Oxygen

Answer

Chlorine

Answer

Nitrogen

Question 41

Which of the following non-metals is used in the production of glass?

Accepted Answer

Silicon

Answer

Carbon

Answer

Sulfur

Answer

Phosphorus

Question 42

Which of the following is a chemical property of non-metals?

Accepted Answer

Ability to form ions

Answer

Color

Answer

Boiling point

Answer

Hardness

Question 43

Which of the following technologies relies heavily on the use of non-metals?

Accepted Answer

Solar cells

Answer

Internal combustion engines

Answer

Nuclear reactors

Answer

Hydroelectric power plants

Question 44

How does the position of a non-metal in the periodic table affect its ability to form acids?

Accepted Answer

The further left a non-metal is in the periodic table, the stronger the acid it forms.

Answer

Non-metals in the same period (row) of the periodic table form acids of similar strength.

Answer

The size of the non-metal atom has no effect on the strength of the acid it forms.

Answer

Non-metals only form acids when they react with metals.

Question 45

Which non-metal is widely used in semiconductors and has four valence electrons?

Accepted Answer

Silicon

Answer

Chlorine

Answer

Phosphorus

Answer

Iodine

Question 46

What is the primary type of chemical bond formed between non-metal atoms?

Accepted Answer

Covalent

Answer

Ionic

Answer

Metallic

Answer

Hydrogen

Question 47

Which non-metal is the most reactive and forms the strongest acids?

Accepted Answer

Fluorine

Answer

Oxygen

Answer

Carbon

Answer

Nitrogen

Question 48

Which non-metal is crucial for plant growth and is found in amino acids?

Accepted Answer

Nitrogen

Answer

Chlorine

Answer

Phosphorus

Answer

Sulfur

Question 49

What kind of reaction occurs when a non-metal reacts with hydrogen to form a covalent compound?

Accepted Answer

Synthesis

Answer

Oxidation-reduction

Answer

Acid-base

Answer

Precipitation

Question 50

Which non-metal is a solid at room temperature and has the highest electronegativity?

Accepted Answer

Fluorine

Answer

Bromine

Answer

Chlorine

Answer

Iodine

Question 51

Which of the following is NOT a typical physical property of non-metals?

Accepted Answer

Shiny surfaces

Answer

Poor conductors of heat and electricity

Answer

Low melting and boiling points

Answer

Brittle

Question 52

Which non-metal is commonly used as a semiconductor in electronic devices?

Accepted Answer

Silicon

Answer

Carbon

Answer

Chlorine

Answer

Bromine

Question 53

What is the chemical symbol for nitrogen?

Accepted Answer

N

Answer

P

Answer

S

Answer

Cl

Question 54

Which of the following elements is a halogen?

Accepted Answer

Fluorine

Answer

Oxygen

Answer

Nitrogen

Answer

Carbon

Question 55

What is the chemical formula for carbon dioxide?

Accepted Answer

CO2

Answer

CO

Answer

NO2

Answer

SO2

Question 56

Which of the following non-metals is a potential source of clean energy?

Accepted Answer

Hydrogen

Answer

Helium

Answer

Oxygen

Answer

Neon

Question 57

Which of the following elements is an example of a noble gas?

Accepted Answer

Helium

Answer

Nitrogen

Answer

Oxygen

Answer

Fluorine

Question 58

Which non-metal is used in the manufacturing of sulfuric acid?

Accepted Answer

Sulfur

Answer

Nitrogen

Answer

Oxygen

Answer

Carbon

Question 59

Which property of non-metals is exhibited by their ability to react with metals and form salts?

Accepted Answer

React with metals to form salts

Answer

Are poor conductors of heat

Answer

Have a dull appearance

Answer

Are solids at room temperature

Question 60

Identify the non-metal that is classified as a noble gas:

Accepted Answer

Helium

Answer

Chlorine

Answer

Phosphorus

Answer

Silicon

Question 61

Which non-metal is categorized as a metalloid?

Accepted Answer

Boron

Answer

Oxygen

Answer

Fluorine

Answer

Sodium

Question 62

Identify the non-metal used in the production of glass:

Accepted Answer

Silicon

Answer

Nitrogen

Answer

Carbon

Answer

Oxygen

Question 63

Which non-metal is utilized in the production of semiconductors?

Accepted Answer

Silicon

Answer

Aluminum

Answer

Copper

Answer

Iron

Question 64

Which of the following non-metals is essential for plant growth?

Accepted Answer

Nitrogen

Answer

Phosphorus

Answer

Chlorine

Answer

Sulfur