Pumice stone is an example of

Chemistry
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#1

Pumice stone is an example of ______

  1. foam

  2. sol

  3. gel

  4. solid sol

#2

The correct answer is 4) solid sol. Pumice stone is an example of solid sol. Colloids which are solid in state but are a little soft and which become softer when they are boiled for 5-6 min are referred to solid sols.

Volcanic rocks that form when lava suddenly cools during an eruption is an example of pumice stones. A pumice stone is porous and light and it has an appearance like a sponge.

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