Covalent bond length of a chlorine molecule is $1.98 \mathring{A}$. Covalent radius (in $\mathring{A}$) of chlorine atom is $........$

According to the given figure,which of the following statements is incorrect?

The number and type of bonds between two carbon atoms in calcium carbide are

The electronic configuration of $X$ and $Y$ are given below:
$X: 1s^2 2s^2 2p^6 3s^2 3p^3$
$Y: 1s^2 2s^2 2p^6 3s^2 3p^5$
Which of the following is the correct molecular formula and type of bond formed between $X$ and $Y$?

According to recent research,carbon suboxide $(C_3O_2)$ is a component of the atmosphere of Mercury. What is the Lewis structure of carbon suboxide in its ground state?

In a molecule of phosphorus $(V)$ oxide,there are