Bonding and Structure Quiz

Which type of bonding occurs between metals and non-metals?

• Ionic Bonding

• Covalent Bonding

• Metallic Bonding

• Van der Waals Forces

Answer explanation

Ionic bonding occurs between metals and non-metals. Metals tend to lose electrons and become positively charged ions, whereas non-metals tend to gain electrons, becoming negatively charged ions. These opposite charges attract each other, leading to the formation of an ionic bond. Covalent bonding, Metallic bonding, and Van der Waals forces are other types of bonds but they do not occur between metals and non-metals.

What is the example of an ionic compound?

• Oxygen

• Water

• Sodium chloride

• Graphite

Answer explanation

The question asks for an example of an ionic compound. Ionic compounds are formed when a metal and a nonmetal exchange electrons. Sodium chloride, commonly known as table salt, is an ionic compound because it is composed of sodium ions and chloride ions.

Which type of bonding occurs between non-metal atoms?

• Ionic Bonding

• Covalent Bonding

• Metallic Bonding

• Dipole-Dipole Interactions

Answer explanation

Covalent bonding is the type of bonding that occurs between non-metal atoms. This type of bonding involves the sharing of electron pairs between atoms. Unlike ionic or metallic bonding, covalent bonding allows for the stable balance of attractive and repulsive forces between atoms when they share electrons.

What is the example of a simple molecular substance?

• Oxygen

• Sodium chloride

• Diamond

• Iron

Answer explanation

Oxygen is a simple molecular substance. This is because it consists of two oxygen atoms covalently bonded together, forming a diatomic molecule. On the other hand, Sodium chloride is an ionic compound, Diamond is a network covalent substance, and Iron is a metallic substance. Therefore, among all options, Oxygen best fits the description of a simple molecular substance.

What is the structure of ionic compounds?

• Giant ionic lattice

• Small molecules

• Giant covalent structures

• Regular lattice structure

Answer explanation

The structure of ionic compounds is called a 'Giant ionic lattice.' In this structure, ions are arranged in a repeating pattern that extends in all three spatial dimensions. This structure allows ionic compounds to have high melting and boiling points. The other options do not correctly describe the structure of ionic compounds.

What is the structure of simple molecular substances?

• Giant ionic lattice

• Small molecules

• Giant covalent structures

• Regular lattice structure

Answer explanation

The structure of simple molecular substances is made up of small molecules. The other options, namely giant ionic lattice, giant covalent structures, and regular lattice structure, are not correct. Small molecules are a characteristic feature of simple molecular substances, consisting of few atoms held together by covalent bonds.

What is the structure of silicone dioxide?

• Giant ionic lattice

• Small molecules

• Giant covalent structure

• Regular lattice structure

Answer explanation

The question asks about the structure of giant covalent structures. The correct answer is 'Giant covalent structures', which indicates that these structures are typically large, composed of repeating sub-units, and held together by covalent bonds.

What is the structure of metals?

• Giant ionic lattice

• Small molecules

• Giant covalent structures

• Regular lattice structure

Answer explanation

The structure of metals is a regular lattice structure. This means that the atoms in a metal are arranged in an orderly, repeating pattern extending in all three spatial dimensions. Unlike giant ionic lattices or giant covalent structures, this allows metals to have unique properties such as malleability and electrical conductivity.

Which type of molecules have an uneven distribution of electron density?

• Polar Molecules

• Non-Polar Molecules

• Van der Waals Forces

• Hydrogen Bonding

Answer explanation

Polar molecules have an uneven distribution of electron density because they contain polar bonds due to a difference in electronegativity between the bonded atoms. This creates a dipole (positive and negative pole). Non-polar molecules, in contrast, have a uniform distribution of electron density. Therefore, the correct answer is 'Polar Molecules'.

What is the example of a polar molecule?

• Oxygen

• Water

• Sodium chloride

• Graphite

Answer explanation

A polar molecule is one that has a net dipole as a result of the opposing charges from polar bonds not canceling each other out. Among the given options, Water is a perfect example of a polar molecule. This is because it has a bent molecular geometry which causes the oxygen end to be more negative and the hydrogen end to be more positive.