Question

Which of the following is unaffected by both water and oxygen (air)?

• A. Copper
• B. Phosphorous
• C. Silver
• D. All of the above

Answer 1

The correct option is C Silver

• Copper metal reacts with Oxygen, water and Carbon dioxide to form a green coating of Copper hydroxide and Copper carbonate.
• Phosphorus, a non-metal, starts burning and readily turns into flames, when exposed to air.
• Silver is one of the least reactive metals, therefore, remains unaffected by water and air.