Class 12 Chemistry Solid State Type of solid and Their properties

Medium

What are polycrystalline solids?

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Solution

(N/A) - Some solids appear to be amorphous but actually possess microcrystalline structures. Such substances are known as polycrystalline solids.
- Example: Metals are often found in a polycrystalline state.
- In a metal sample,individual crystals are randomly oriented,which makes the bulk material appear isotropic even though the individual crystals are anisotropic.

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

Solid State

Subtopic

Type of solid and Their properties

Similar Questions

Explain $n$-type and $p$-type semiconductors.

Medium

Which of the following oxides shows electrical properties like metals?

DifficultKCET 2018

Select the correct statements.
$(A)$ Crystalline solids have long range order.
$(B)$ Crystalline solids are isotropic.
$(C)$ Amorphous solids are sometimes called pseudo solids.
$(D)$ Amorphous solids soften over a range of temperature.
$(E)$ Amorphous solids have a definite heat of fusion.
Choose the most appropriate answer from the options given below:

DifficultJEE MAIN 2021

Define the term 'amorphous'. Give a few examples of amorphous solids.

Easy

The reason why solid $NaCl$ is a poor conductor of electricity is .......

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