Question

Given the electronegativities of three elements X = 1.0, Y = 2.0, Z = 3.0. The type of bonding formed between XZ and YZ respectively would be :

• A. Covalent, ionic
• B. Ionic, covalent
• C. Covalent, covalent
• D. Ionic, ionic.

Answer 1

Answer: (B)

Ionic, covalent

Answer 2

Here $\Delta$xz = 3 – 1 = 2 > 1.7

$\therefore$ XZ is ionic

$\Delta$yz = 2 – 1 = 1 < 1.7

$\therefore$ YZ is covalent.