Assertion :1 The sum of the series1+(1+2+4)+(4+6+9)+(9+12+16)+.+(361+380+400) is 8000 Reason: ∑nt=1(k3−(k−1)3)=n3 for any natural number n.
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.