NEETChemistrys Block Elements
Why do beryllium and magnesium appear kinetically inert to oxygen and water?
Options
- AThey have a strong aversion to oxygen and water.
- BThey have a protective oxide film on their surface.
- CThey are naturally non-reactive elements.
- DThey have a high electronegativity.
Correct answer
B. They have a protective oxide film on their surface.
Step-by-step solution
Beryllium and magnesium have a thin oxide film on their surfaces that prevents further reaction with oxygen and water, making them appear kinetically inert.