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Select correct statement :

$\begin{array}{1 1}(a)\;\text{A zero order}\;rx^n\;\text{may not be a complex}\;rx^n\\(b)\;\text{Order of }\;rx^n\;\text{can be fractional}\\(c)\;\text{The order of a}\;rx^n\;\text{are only be determined from the stoichiometric equation of the reaction}\\(d)\;\text{Half life for a first order}\;rx^n\;\text{is independent of first order}\;rx^n\end{array}$

Half life for a first order $rx^n$ is independent of first order $rx^n$. Its inversely propotional to K: $t_{1/2} = \large\frac{0.693}{K}$
Hence (d) is the correct answer.
edited Jul 26, 2014