Among the following,which property is commonly exhibited by a covalent compound?

What type of bond exists between the two carbon atoms in calcium carbide $(CaC_2)$?

The hydrogen chloride molecule contains a

Covalent compounds are generally ...... in water.

When is a multiple bond said to exist between two atoms?

The $X-X$ bond length is $1.00 \mathring{A}$ and $C-C$ bond length is $1.54 \mathring{A}$. If $EN$ of $X$ and $C$ are $3.0$ and $2.0$ respectively,the $C-X$ bond length is likely to be ............ $\mathring{A}$.