Question

Consider the following statements:

$S_1$ : Fluorine does not form any polyhalide because it does not have d-orbitals in valence shell.

$S_2$ : In $Cl{F}_3$, the three lone pairs of electrons occupy the equatorial position.

$S_3$ : In $B_2$ and $N_2$ molecules, mixing of s- and p- atomic orbitals takes place.

Select the correct statements.

• A. $S_1,S_2$ and $S_3$
• B. $S_1$ and $S_2$
• C. $S_1$ and $S_3$
• D. $S_2$ and $S_3$

Answer 1

Answer: (C)

$S_1$ and $S_3$

Fluorine does not form any polyhalide because it does not have $d-$ orbitals in valence shell. $2^{nd}$ shell will have only $s$ and $p$ orbitals.

In $B_2$ and $N_2$ molecules mixing of $s-$ and $p-$ atomic orbitals takes place.