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The Solid State
Short Answer Type
71.
What causes the conduction of electricity by semi-conductors?
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72.
What may be the difference between phosphorus doped and gallium doped semiconductors?
Phosphorus doped semiconductors produced n- type semiconductor while when silicon doped with gallium, it produces p- type semiconductor.
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73.
What are non-stoichiometric compounds?
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74.
In which compound Schottky and Frenkel defects are present together?
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75.
What is the percentage of free space in a body centred cubic crystal?
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76.
Give one example of anti ferroelectric solid and one example of ferroelectric solid.
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77.
What happens when CdCl
2
is added to AgCl?
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78.
Name the solid substance in which cations occupy all the tetrahedral voids.
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79.
What is the effect of Frenkel defect on electrical conductivity of the solid?
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80.
Mention one property which is caused due to the presence of F-centre in a solid.
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