Question

The molecular formula of the compound formed from $$\mathrm{B}$$ and $$\mathrm{C}$$ will be ______.

पर्याय

• $$\mathrm{BC}$$

• $$\mathrm{B}{\phantom{A}}_2\mathrm{C}$$

• $$\mathrm{BC}{\phantom{A}}_2$$

• $$\mathrm{BC}{\phantom{A}}_3$$

Answer 1

The molecular formula of the compound formed from $$\mathrm{B}$$ and $$\mathrm{C}$$ will be $$\mathrm{BC}{\phantom{A}}_3$$.

Explanation:

The electronic configuration of B given as 1s², 2s², 2p⁶, 3s², 3p³ which represents phosphorous atom. The electronic configuration of $$\mathrm{C}$$ is given as 1s², 2s², 2p⁶, 3s², 3p⁵  which represents chlorine molecule. So, the molecular formula representing B and C will be phosphorous trichloride trichloride $$(\mathrm{PCl}{\phantom{A}}_3)$$ which corresponds to $$\mathrm{BC}{\phantom{A}}_3$$.