Question

Refer to the given Venn diagram and select the incorrect option regarding P, Q and R.

• A. R is formed by sharing of 4 electrons.
• B. P could be $F_2$, Q could be $N_2$ and R could be $O_2$.
• C. P could be $C{l}_2$ and Q could be $O_2$.
• D. P, Q and R are formed by sharing of electrons.

Answer 1

The correct option is C P could be $C{l}_2$ and Q could be $O_2$.

P, Q, and R form covalent bonds which means P, Q and R are formed by sharing electrons.

Compound P forms single bond by sharing two valence electrons.
Compound R forms double bond by sharing four valence electrons.
Compound Q forms triple bond by sharing six valence electrons.

Chlorine and fluorine both have seven valence electrons in the outermost shell. Therefore, in order to achieve stable octet configurations, two chlorine or fluorine atoms can share one electron to form a single bond.

Two oxygen atoms share four electrons to attain a stable configuration and form a double bond.

Two nitrogen atoms share six electrons to attain stable configuration and form a triple bond.