Which of the following shows variable valency: *
a) Mercury
b) Carbon
c) Sodium
d) Nitrogen
Answers
Answered by
2
Answer:
Certain elements have more than one valency. They exhibit variable valency. For example, copper, tin, iron and mercury exhibit variable valency. Copper combines with oxygen to form cuprous oxide (Cu2O) and cupric oxide (CuO).
Answered by
1
Answer:
Mercury = 1&2
carbon = 4
sodium = 1
nitrogen = 3
Explanation:
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