(a)If we break a piece of chalk, a wooden block, and an iron nail, we will observe that it is very difficult to break an iron nail, wooden block requires lesser force, while chalk can be broken easily. What can be concluded from these observations? (b)Though sponges can be compressed yet they are considered as solid. Give reasons. (c)Give an example of diffusion of solid in liquid.
a). The above absorption explains that metallic bond found between iron atoms in the iron nails are comparatively much more stronger than the inter particle forces between the chalk or wooden pieces.
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