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Ionic and Covalent Bonds MCQ2

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Questions and Answers

What is the primary goal of atoms during bonding according to the Octet Rule?

To attain a neutral charge

To reach an electronic arrangement with eight electrons in their outermost energy level (correct)

To form a maximum number of bonds with other atoms

To gain or lose one electron

What is the characteristic of ionic compounds in terms of their physical state at room temperature?

They are mostly solids at room temperature (correct)

They are mostly liquids or gases

They are mostly gases with high boiling points

They are mostly solids with low melting points

What is the reason why covalent substances do not conduct electricity when molten or in solution?

They do not break up to form ions (correct)

They do not have a sufficient number of electrons

They do not form ions

They do not have a sufficient number of protons

What type of bond is formed by the end-on overlap of orbitals?

σ (sigma) bond Signup and view all the answers

What is the term for electrons that are shared in a covalent bond?

Bond pairs Signup and view all the answers

What is the characteristic of covalent compounds in terms of their melting and boiling points?

They have low melting and boiling points Signup and view all the answers

What is the term for a bond where electrons are unequally shared between two atoms?

Polar covalent bond Signup and view all the answers

What is the term for atoms that have gained or lost electrons to form ions?

Ions Signup and view all the answers

What is the primary difference between the outermost energy level of an atom in an ionic bond and an atom in a covalent bond?

The arrangement of electrons with eight electrons Signup and view all the answers

Which type of bond is responsible for the high melting and boiling points of ionic compounds?

Electrostatic force of attraction Signup and view all the answers

What is the reason why ionic compounds tend to dissolve readily in water?

They break up to form ions Signup and view all the answers

What is the term for the number of bonds an atom of an element forms when it reacts?

Valency Signup and view all the answers

What is electronegativity ?

the relative attraction of an atom for the shared pair of electrons in a covalent bond. Signup and view all the answers