IPC Unit 3

What type of chemical bond is formed by the transfer of electrons from one atom to another?

• Covalent bond

• Ionic bond

• Hydrogen bond

• Metallic bond

Answer explanation

An ionic bond is formed by the transfer of electrons from one atom to another, resulting in the attraction between oppositely charged ions. This type of bond involves the complete transfer of electrons.

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DOK Level 1: Recall

Which bond involves the sharing of electron pairs between atoms?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Dipole-dipole interaction

Answer explanation

The correct bond that involves the sharing of electron pairs between atoms is a Covalent bond.

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DOK Level 1: Recall

What type of bond is primarily found between water molecules?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

Answer explanation

Water molecules primarily form hydrogen bonds with each other, not ionic, covalent, or metallic bonds.

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DOK Level 1: Recall

In an acid-base reaction, what does an acid typically donate?

• Protons

• Electrons

• Neutrons

• Photons

Answer explanation

In an acid-base reaction, an acid typically donates protons, which are positively charged particles.

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DOK Level 1: Recall

What is the general result of a combustion reaction?

• Formation of water

• Release of light

• Production of heat and light

• Reduction of reactants

Answer explanation

The general result of a combustion reaction is the production of heat and light, making the choice 'Production of heat and light' the correct answer.

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DOK Level 1: Recall

Which reaction involves a substance combining with oxygen, often producing heat and light?

• Acid-base reaction

• Combustion reaction

• Synthesis reaction

• Decomposition reaction

Answer explanation

Combustion reaction involves a substance combining with oxygen, often producing heat and light.

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DOK Level 1: Recall

What is typically reduced in an oxidation-reduction (redox) reaction?

• The oxidizing agent

• The reducing agent

• The electron acceptor

• The electron donor

Answer explanation

In an oxidation-reduction (redox) reaction, the electron donor is typically reduced by transferring electrons to the electron acceptor.

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DOK Level 1: Recall

In a redox reaction, what does the oxidizing agent do?

• Loses electrons

• Gains electrons

• Donates protons

• Accepts neutrons

Answer explanation

In a redox reaction, the oxidizing agent gains electrons, which allows it to oxidize the other reactant by accepting electrons.

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DOK Level 1: Recall

Which type of reaction involves an electron transfer between two substances?

• Combustion reaction

• Acid-base reaction

• Oxidation-reduction reaction

• Precipitation reaction

Answer explanation

Oxidation-reduction reaction involves an electron transfer between two substances, making it the correct choice.

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DOK Level 1: Recall

What is the main characteristic of a hydrogen bond compared to ionic or covalent bonds?

• It involves the sharing of electron pairs

• It is generally stronger than covalent bonds

• It is a type of weak electrostatic attraction

• It results in the formation of a new molecule

Answer explanation

The main characteristic of a hydrogen bond is that it is a type of weak electrostatic attraction, unlike ionic or covalent bonds.

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DOK Level 1: Recall