Question 10 Part A Which molecule or compound below contains a pure covalent bond? SCl6 Li2CO3...

Question 10

Part A

Which molecule or compound below contains a pure covalent bond?

SCl₆

Li₂CO₃

PF₃

NaCl

Cl₂

Solutions

Expert Solution

Covalent bond is formed from sharing of electrons. Sharing of electrons are possible when there is no significance difference in electronegavity difference the two atoms. If the difference in electronegativity between two atoms participarting in the bond is less than 1.8, they form covalent compound. If it is more ionic bond is formed.

So accordingly, NaCl is ionic, PF3 is ionic ( Cl and F are most electronegative, while Na is most electropositive )

for the same reason, Li2CO3 is also ionic.

hence Cl2 is the covalent compound. SCl6 is also covalent.

In chlorine for example, molecule involved is chlorine and it forms covalent bond.

queen_honey_blossom answered 1 year ago

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