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A, P, X, B and E are the elements belonging to 14th group of Modern periodic table. The correct trend of resistivity for these elements is A > P = X > B > E. The element ‘B’ in the sequence is

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a
Pb
b
Ge
c
Si
d
Sn

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detailed solution

Correct option is A

Atomic radius trend…CSi>Ge>Pb>Sn;EN trend…C>Pb>Si=Ge=Sn;Density…..C(graphite)Si>Ge>Sn>Pb;Resistivity…C>Si=Ge>Pb>Sn;Conductivity…C
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Which of the following oxidation states are the most characteristic for lead and tin respectively?

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