SELECT * FROM question_mgmt as q WHERE id=3557 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=254 and ex_no='6' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science Metals and Non-Metals an element reacts with oxygen to give a compound w

Question:

An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be

(a) calcium
(b) carbon
(c) silicon
(d) iron.

Answer:

(a) The element is calcium.

Because calcium oxide is an ionic compound, as these compounds have a high melting point.


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  • Answered by Ekta Mehta
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