Carbon Compounds Quiz

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Questions and Answers

Why are most carbon compounds poor conductors of electricity?

The forces of attraction between the molecules are not very strong
They have a tendency to attain a completely filled outer shell
They have low melting and boiling points
They do not give rise to any ions (correct)

How many valence electrons does carbon have?

2
8
4 (correct)
6

How do elements forming ionic compounds achieve noble gas configuration?

By having a low melting and boiling point
By having a completely filled outer shell
By forming weak forces of attraction between molecules
By gaining or losing electrons from the outermost shell (correct)

What can be concluded about the bonding in carbon compounds?

It does not give rise to any ions (B) Signup and view all the answers

What is the atomic number of carbon?

6 (D) Signup and view all the answers

Explain the property of catenation in carbon compounds and how it allows carbon to form a large number of compounds.

Catenation is the unique ability of carbon to form bonds with other atoms of carbon, giving rise to large molecules. This property allows carbon to form long chains of carbon, branched chains of carbon, or even carbon atoms arranged in rings, as well as the ability to form single, double, or triple bonds between carbon atoms. Compounds linked by only single bonds between the carbon atoms are called saturated compounds, while those with double or triple bonds are called unsaturated compounds. No other element exhibits the property of catenation to the extent seen in carbon compounds. Signup and view all the answers

What is the estimated number of carbon compounds whose formulae are known to chemists, and how does it compare to compounds formed by all the other elements put together?

The estimated number of carbon compounds whose formulae are known to chemists is in the millions, outnumbering by a large margin the compounds formed by all the other elements put together. Signup and view all the answers

Why does carbon have the unique ability to form a large number of compounds?

The nature of the covalent bond enables carbon to form a large number of compounds. This is attributed to carbon's property of catenation, where it can form long chains, branched chains, or rings of carbon atoms, as well as the ability to form single, double, or triple bonds between carbon atoms. Signup and view all the answers

What are saturated and unsaturated compounds of carbon, and how do they differ?

Compounds of carbon linked by only single bonds between the carbon atoms are called saturated compounds, while those with double or triple bonds between the carbon atoms are called unsaturated compounds. Saturated compounds have no double or triple bonds, while unsaturated compounds contain double or triple bonds, making them capable of further reactions. Signup and view all the answers

How does the property of catenation in carbon compounds compare to other elements, particularly silicon?

No other element exhibits the property of catenation to the extent seen in carbon compounds. Silicon forms compounds with hydrogen which have chains of up to seven or eight atoms, but these compounds are very reactive, and do not show the extensive catenation observed in carbon compounds. Signup and view all the answers

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