NDA 2023
- Exam
- NDA
- Year
- 2023
- Subject
- General Ability
- Chapter
- General Science
NDA 2023 · General Ability · General Science
Which one of the following metals does NOT react with cold water to...
Which one of the following metals does NOT react with cold water to liberate hydrogen gas?
Options
- APotassium
- BIron
- CCalcium
- DSodium
Correct answer
B. Iron
Step-by-step solution
Metals like Fe , Al and Zn do not react with cold as well as hot water. They only react with steam to form the metal oxide and hydrogen.