Question

Why are metals like potassium and sodium stored in kerosene oil?

• A. To prevent oxidation
• B. To avoid rusting
• C. To prevent accidental fires due to their vigorous reaction with oxygen
• D. To preserve their shiny surface

Hint:

Alkali metals are stored under oil to prevent reaction with air and water.

Answer 1

The Correct Option is C

Step 1: Recall the reactivity of potassium and sodium.
Potassium (K) and sodium (Na) are highly reactive alkali metals.
Step 2: Describe their reaction with air and water.
They react vigorously with oxygen and moisture in the air, producing heat that can cause fires.
Step 3: Explain the use of kerosene oil for storage.
Kerosene oil is inert and prevents contact with air and water, thus preventing these hazardous reactions.