Assertion :The close packing of atoms in cubic structure follows the order:
In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices.
(a) Assertion and Reason both are correct statements an Reason is correct explanation for Assertion.
(b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion.
(c) Assertion is correct statement but Reason is wrong statement
(d) Assertion is wrong statement but Reason is correct statement.
Assertion (A) The packing efficiency is maximum for the fcc structure.
Reason (R) The coordination number is 12 in fcc structures.
Assertion – The non-fusible impurities present in iron ore are removed by CaCO3 .
Reason: CaCO3 which decomposes into CaO and CO2. The CaO formed reacts with SiO2 to remove silica
ASSERTION: n-Pentane and n-Hexane belong to a homologous series.
REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - CH2 - group.