10. An element Z belongs to second group of modern periodic table, what will be the formula of its oxide? a. Z2o b. ZO c. Zo2 d. Z2o3
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Answer:
b. ZO is correct.
As both have valency 2
The compond will be, Z^+2 + O^-2 --- ZO
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,,2 zo is the answer please understand me
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