Identify correct statements from the following.(I) C-14 is a radioactive isotope.(II) Carbon is the most abundant 14th group element in earth's crust.(III) Cassiterite is PbS.(IV) Flerovium belongs to carbon family.
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a
(I) , (II) and (IV) only
b
(I) and (II) only
c
(I) and (IV) only
d
(II) and (IV) only
answer is C.
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Detailed Solution
(I) C-14 is a radioactive isotope.(II) Silicon is the most abundant 14th group element in earth's crust.(III) Cassiterite is SnO2.(IV) Flerovium belongs to carbon family.
Identify correct statements from the following.(I) C-14 is a radioactive isotope.(II) Carbon is the most abundant 14th group element in earth's crust.(III) Cassiterite is PbS.(IV) Flerovium belongs to carbon family.