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Q.

I. CuO, Si and Ge are semiconductors
II. Some organic polymers like polyaniline act as electronic conductors
III. Electrical conductance is independent of number of valence electrons.
In the light of above statements, correct answer is

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a

Only I & III are correct

b

Only I & II are correct

c

Only III is correct

d

All the statements are correct

answer is B.

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Detailed Solution

Electrical conductance α  no. of valence electrons

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