Question

The valency of carbon with respect to sodium is
(A) $1$
(B) $2$
(C) $3$
(D) $4$

Answer 1

Carbon is an element denoted by the symbol $C$. It is the most important element in chemistry. This element is present in the group $14$ in a periodic table. It belongs to the p block.

Complete step by step answer:
In the universe carbon is found in a very large amount. It is also found in the human body in a very large amount (second most abundant after oxygen). Atomic carbon is very less stable in an elemental state so it is mostly present in molecular form. According to carbon molecular configuration in a very large number carbon atoms combine with each other to form molecules. This molecular form has a different molecular configuration known as allotropes.
Mainly Carbon are two types on the basis of their structure- crystalline and amorphous. Amorphous forms of carbon that are present in nature that is Diamond, Graphite. And the amorphous form of carbon is Coal, lamp black, charcoal.
Valency of an element may be defined as the combining capacity of an element with the other element. Valency of carbon is $4$and valency of sodium is $1$ and the valency of carbon with respect to sodium is$4$.
Hence, option ‘(D) $4$’ is the correct option.

Note: The atomic weight of Carbon is $6g/mol$. The molecular heat capacity is different in different forms of carbon. Carbon have three isotopes (isotopes may be defined as the elemental form of an element having carry same atomic number but having different atomic mass) ${C^{12}},{C^{13}},{C^{14}}$. Catenation power of carbon is very high; it means it makes a bond with itself.