Question

The molecular formula of the compound formed from \[\ce{B}\] and \[\ce{C}\] will be ______.

विकल्प

• \[\ce{BC}\]

• \[\ce{B2C}\]

• \[\ce{BC2}\]

• \[\ce{BC3}\]

Answer 1

The molecular formula of the compound formed from \[\ce{B}\] and \[\ce{C}\] will be \[\ce{BC3}\].

Explanation:

The electronic configuration of B given as 1s², 2s², 2p⁶, 3s², 3p³ which represents phosphorous atom. The electronic configuration of \[\ce{C}\] 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 \[\ce{(PCl3)}\] which corresponds to \[\ce{BC3}\].