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 :

The Element is likely to be Calcium (Option a)

Calcium react with oxygen and gives calcium oxide which has a high melting point of 2,572 celsius and it is also soluble in water

Let us look at other options :
Option b - carbon reacts with oxygen to give carbon dioxide which is a gas. So, this option is wrong.
Option c - silicon reacts with oxygen to form silicon oxide which is insoluble in water .So, the option is wrong
Option d - iron reacts with oxygen to form iron(iii) oxide which is insoluble in water.So,the option is wrong

NCERT solutions of related questions for Metals and Non Metals

NCERT solutions of related chapters class 10 maths

NCERT solutions of related chapters class 10 science