Answer:
'3' in NaHCO₃ is the number of moles oxygen in 1 mole of sodium bicarbonate
Explanation:
see above note.
Answer: Option (D) is the correct answer.
Explanation:
When aluminium reacts with oxygen, it results in the formation of a layer of aluminium oxide on its surface.
This outer layer gets corroded but it forms a protective coating for the inner layers that prevents from further corrosion.
Thus, we can conclude that metals like aluminum can react with oxygen to form coatings that prevent corrosion.
Answer: B. Metal
Explanation: The catalyst used in the converter is mostly a precious metal such as platinum, palladium and rhodium Hope This Helped (=^･-･^=)
