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Question

What are the properties of amorphous silicon?

A
It is a brown powder
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B
It is a good conductor of electricity at low temperature.
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C
More reactive than crystalline silicon
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D
When heated in air, it oxidises at surface level and catches fire
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Solution

The correct options are
A It is a brown powder
C More reactive than crystalline silicon
D When heated in air, it oxidises at surface level and catches fire
Amorphous silicon is a brown powder.It does not conduct electricity at low temperature and is more reactive than crystalline silicon.When heated in air, it oxidises at surface level and catches fire.

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