Discussion
Among the following metals, which one is least reactive ?
Answer: B
The least reactive metal is gold.
In the reactivity series, metals are ranked by how readily they lose electrons. Calcium is near the top and reacts with cold water; zinc is in the middle and reacts with dilute acids; lead is lower and reacts only slowly. Gold is at the bottom: it does not react with water, air or ordinary acids, which is why it stays bright for centuries and is found free in nature.
The order of the four is calcium, zinc, lead, gold, from most to least reactive.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development