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Z, R, A, Y and D are the elements belonging to 14th group of Modern periodic table. The correct trend of boiling point for these elements is  Z > R > A > Y > D . The element ‘Z' in the sequence is

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By Expert Faculty of Sri Chaitanya
a
Ge
b
Sn
c
C
d
Si

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detailed solution

Correct option is C

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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