Question

Assertion :Carbon shows tetravalency in all carbon compounds. Reason: Carbon shares its four valence electrons with other atoms and forms four single covalent bonds to get the nearest noble gas configuration.

• A. Assertion and reason both are correct statements and reason is correct explanation for assertion.
• B. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
• C. Assertion is correct statement but reason is wrong statement.
• D. Assertion and reason both are wrong statements.

Answer 1

The correct option is A Assertion and reason both are correct statements and reason is correct explanation for assertion.

The valency of carbon is four and one atom of carbon can make four covalent bonds. Carbon shows some important characteristic properties such as:

Catenation: It is the property of carbon to make a long carbon chain.

Tetravalency: The tetravalency of carbon is its ability to form bonds with other atoms by sharing its valence electrons. For example, for the formation of $C{H}_4$ molecule, one carbon combines with four hydrogen atoms.

From the above points, it is clear that carbon shares its four valence electrons with other atoms and forms four single covalent bonds to get the nearest noble gas configuration. This is known as tetravalency. Thus carbon shows tetra valency in all hydrocarbons and both statements are true.