1.

An element reacts with oxygen to give a compound with high melting point. This compound is also soluble in water. The element is likely to be.(i)  Calcium(ii)  Carbon(iii)  Silicon(iv)  Iron 

Answer»

Correct option  (i) Calcium 

Explanation:

The element is likely to be Ca as its oxide have high melting point & It is soluble in water.



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