Sunday 28 September 2014

Metals and Non-Metals: CBSE Class 10 NCERT Solution

Find CBSE Class 10 NCERT Solutions for Metals and Non-Metals. It has been framed keeping the Students' perspective in mind. This will help the Students with easy and simple understanding of the concept and technique employed in solving this NCERT Solution as per the CBSE Marking Scheme.
Q. Why sodium is kept immersed in kerosene oil?
Sol: Sodium is a very reactive metal. It can combine with air & water. Thus, it can catch fire if kept in open. In order to prevent accidental fires and accidents, sodium is stored in kerosene oil.
Q. Why do ionic compounds have high melting points?
Sol: Ionic compounds have strong electrostatic forces of attraction between them. Thus, it requires a lot of energy to overcome these forces. That is why ionic compounds have high melting points
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