Question

13. Which of the following substance is not a true solid?
a) Wood
b)Glass
c)Sponge
d) Rubber band
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Answer 1

Answer:

rubber band and sponge are not true solid

wood and glass are true solid

hope it helps you

Answer 2

Answer:

sponge is not a true solid

Explanation:

spongesponge is considered as a solid but by the property of solid of negligible compressibility sponge is a solid which is highly compressible hence it can not be considered as true solid

rubber band can also be considered as not a true solid as it is also compressible and has the ability to store energy by the property of elasticity, but it returns back to its original form when other external force is remove

so in this case the correct answer should be sponge

Hope that helps