Question 1

What is a compound?

Accepted Answer

A pure substance made up of two or more elements chemically combined together

Answer

A chemical bond formed by the attraction between atoms

Answer

A pure substance that cannot be broken down into simpler substances

Answer

A mixture of substances that can be separated by physical methods

Question 2

What defines a saturated organic compound?

Accepted Answer

A compound that has no double or triple bonds

Answer

A compound with multiple functional groups

Answer

A compound that contains only carbon and hydrogen

Answer

A compound that has at least one double bond

Question 3

Which of the following is an example of a pure substance?

Accepted Answer

Gold

Answer

Personal care product

Answer

Air

Answer

Salt water

Question 4

What is a hydrocarbon?

Accepted Answer

Compounds that contain only hydrogen and carbon atoms

Answer

A type of inorganic compound

Answer

A pure substance with no elements combined

Answer

A compound that contains oxygen

Question 5

What distinguishes physical properties from chemical properties?

Accepted Answer

Physical properties can be determined without changing the substance

Answer

Chemical properties describe the appearance of a substance

Answer

Physical properties involve the ability to attract water

Answer

Chemical properties can be observed without testing the substance

Question 6

What is the role of a functional group in a compound?

Accepted Answer

It is an atom or a group of atoms responsible for most of the chemical properties

Answer

It is a type of chemical bond

Answer

It determines the physical state of a substance

Answer

It is the simplest form of a compound

Question 7

Which of the following best describes a mixture?

Accepted Answer

Consists of two or more pure substances which have not chemically combined

Answer

A single substance with unique properties

Answer

A pure element that cannot be broken down

Answer

A compound formed by chemical bonds

Question 8

What is a non-polar chemical compound?

Accepted Answer

A compound with carbon, hydrogen, and oxygen that does not have a charge distribution

Answer

A compound with a positive and negative end

Answer

A compound that only contains carbon and hydrogen

Answer

A compound that is soluble in water

Question 9

What is an example of a physical property of oil?

Accepted Answer

Appearance as a liquid

Answer

Ability to be chemically combined with other substances

Answer

Chemical reactivity with oxygen

Answer

Ability to attract water

Question 10

What is the main difference between organic and inorganic compounds?

Accepted Answer

Organic compounds contain carbon, while inorganic compounds do not

Answer

Organic compounds can be broken down into simpler substances

Answer

Organic compounds are always liquids, while inorganic are solids

Answer

Inorganic compounds only contain metals

Question 11

What is a pure substance?

Accepted Answer

A single substance that has no other substances mixed with it.

Answer

A mixture of various organic and inorganic compounds.

Answer

A substance that can be broken down into simpler forms.

Answer

Two or more substances that have chemically combined.

Question 12

Which of the following is an example of an inorganic compound?

Accepted Answer

Zinc oxide

Answer

Hydrocarbon

Answer

Isoamyl methoxy cinnamate

Answer

Saturated organic compound

Question 13

What defines a hydrocarbon?

Accepted Answer

Compounds that contain only hydrogen and carbon atoms.

Answer

Compounds that lack carbon but have hydrogen.

Answer

Compounds with carbon, hydrogen, and oxygen.

Answer

Compounds that contain oxygen and nitrogen.

Question 14

What distinguishes saturated organic compounds from unsaturated ones?

Accepted Answer

Saturated organic compounds have no double or triple bonds.

Answer

Unsaturated compounds have only single bonds.

Answer

Saturated compounds are only found as liquids.

Answer

Saturated compounds attract water better.

Question 15

What are functional groups responsible for?

Accepted Answer

Most of the chemical properties of a compound.

Answer

The atomic structure of compounds.

Answer

The stability of a mixture.

Answer

The physical appearance of a compound.

Question 16

Which of the following is NOT a characteristic of physical properties?

Accepted Answer

Ability to react with other substances.

Answer

Colour.

Answer

Appearance.

Answer

Odour.

Question 17

What is a characteristic of a mixture?

Accepted Answer

Consists of two or more pure substances that have not chemically combined.

Answer

Contains only organic compounds.

Answer

Can be separated by chemical methods.

Answer

Is made of only one type of atom.

Question 18

What is described as a compound made up of two or more elements chemically combined?

Accepted Answer

Compound.

Answer

Pure substance.

Answer

Element.

Answer

Mixture.

Question 19

What type of chemical bond holds atoms together in a molecule?

Accepted Answer

Chemical bonds.

Answer

Nuclear bonds.

Answer

Ionic bonds.

Answer

Physical bonds.

Question 20

What is the difference between physical and chemical properties?

Accepted Answer

Physical properties can be observed without changing the substance.

Answer

Chemical properties can be observed without changes.

Answer

Chemical properties only describe appearance.

Answer

Physical properties involve chemical reactions.

Question 21

What distinguishes an organic compound from an inorganic compound?

Accepted Answer

Organic compounds contain carbon (C).

Answer

Inorganic compounds contain carbon (C).

Answer

Organic compounds lack hydrogen (H).

Answer

Organic compounds are always mixtures.

Question 22

Which of the following is an example of a pure substance?

Accepted Answer

Gold.

Answer

Zinc oxide

Answer

Personal care product

Answer

Isoamyl methoxy cinnamate

Question 23

What type of chemical bond involves attraction between atoms, ions, or molecules?

Accepted Answer

Chemical bond.

Answer

Hydrogen bond

Answer

Covalent bond

Answer

Ionic bond

Question 24

How can mixtures be separated?

Accepted Answer

By physical methods.

Answer

By cooling

Answer

By heating

Answer

By chemical combination

Question 25

What is an unsaturated organic compound?

Accepted Answer

A compound that has double or triple bonds.

Answer

A compound that contains only hydrogen (H) and oxygen (O)

Answer

A compound with no double or triple bonds

Answer

A compound consisting of only one element

Question 26

What type of properties can the characteristics of a substance be classified into?

Accepted Answer

Physical properties and chemical properties.

Answer

Natural and synthetic properties

Answer

Organic properties and inorganic properties

Answer

Soluble and insoluble properties

Question 27

What is a functional group in chemistry?

Accepted Answer

An atom or group of atoms responsible for the chemical properties of a compound.

Answer

A type of chemical bond

Answer

A method of separation

Answer

A pure substance

Question 28

What is a characteristic of saturated organic compounds?

Accepted Answer

They have no double or triple bonds.

Answer

They consist only of hydrogen (H) and carbon (C).

Answer

They always form mixtures.

Answer

They are generally less stable than unsaturated compounds.

Question 29

What defines a mixture in chemistry?

Accepted Answer

A combination of two or more pure substances that have not chemically combined.

Answer

A compound that has a fixed composition.

Answer

A substance that is made up of one type of atom.

Answer

A substance that can only be separated by chemical means.

Question 30

What type of atoms are hydrocarbons made of?

Accepted Answer

Only hydrogen (H) and carbon (C) atoms.

Answer

Hydrogen (H), carbon (C), and sulfur (S)

Answer

Hydrogen (H) and oxygen (O)

Answer

Carbon (C) and nitrogen (N)

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