which of the following has valency 3
carbon
magnesium
boron
oxygen
which of the following has valency 3
carbon
magnesium
boron
oxygen
(h) which of the following
Answers
Answered by
0
Answer:
Copper shows variable valency as it is a d block element.
Thus, copper forms compounds containing Cu
+
ions or Cu
++
ions. Representative elements sodium, calcium and magnesium shows +1, +2 and +2 oxidation states respectively.
Hence, the correct option is A
Answered by
4
Explanation:
boron
carbon
carbon shows variable valency of 2 and 4...
but it also shows more valency...its valency is not restricted only by this two, actually carbon can show valency upto +4, that means it can also show valency 3...for eg:CO3....here u can see carbon has valency 3.
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