The valency of Calcium is 2. Write the formula of its
a) Oxide
b) Chloride
c) Sulphide
d) Carbonate
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Answer:
caco2 is the real answer check now
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Explanation:
Calcium oxide is a neutral compound so the charge on Oxygen should be -2. Valency of Oxygen is 2, so a single Oxygen atom can satisfy the need. Therefore formula is CaO.
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