Question

If an element of high electronegativity combines with an electropositive metal then the product will be

• A. an interstitial alloy
• B. an ionic compound
• C. a substitutional alloy
• D. a simple mixture

Hint:

High \(\chi\) element + electropositive metal → ionic bonding via electron transfer.

Answer 1

The Correct Option is B

Step 1: Electronegativity Review.
- Elements with high electronegativity (e.g., Cl, O) tend to gain electrons.
- Electropositive metals (e.g., Na, K, Ca) tend to lose electrons.
Step 2: Ionic Bond Formation.
Electron transfer results in cation (from metal) and anion (from non-metal) formation, creating an ionic compound.
Step 3: Rule out incorrect options.
- Interstitial alloy: small atoms in metal lattice voids (inapplicable here).
- Substitutional alloy: one metal replaces another in a lattice (metal-metal bond).
- Simple mixture: no chemical bond.
Final Answer: \[ \boxed{\text{an ionic compound}} \]