Search SchoolNGR

Friday, 04 September 2026
Register . Login

Covering iron with grease helps prevent rusting mainly by:

Covering iron with grease helps prevent rusting mainly by:
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Producing protective acids
  • B Removing surface impurities
  • C Increasing metallic hardness
  • D Blocking air and moisture
Correct Answer: Option D
Explanation:
Grease prevents oxygen and water from reaching the iron surface, reducing corrosion.

Share question on: