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Match the items given in Column I with the items given in Column II.
Column I
Column II
i.
Aluminium in solid state
a.
Electrolytic conductor
ii.
Germanium doped with boron
b.
n-type semiconductor
iii.
Silicon doped with phosphorous
c.
p-type semiconductor
iv.
A1(NO₃)₃ in molten state
d.
Metallic conductor

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i – d, ii – c, iii – b, iv – a

i – a, ii – c, iii – b, iv – d

i – b, ii – d, iii – a, iv – c

i – c, ii – a, iii – b, iv – d

answer is B.

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Detailed Solution

Column I		Column II
i.	Aluminium in solid state	d.	Metallic conductor
ii.	Germanium doped with boron	c.	p-type semiconductor
iii.	Silicon doped with phosphorous	b.	n-type semiconductor
iv.	A1(NO₃)₃ in molten state	a.	Electrolytic conductor

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