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Questions  >>  SAT  >>  Math  >>  Quadratic Equations
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Q)

The purity of compound is confirmed by

$\begin{array}{1 1} \text{(a) Its melting point and boiling point} \\ \text{ (b) Chromatographic technique} \\ \text{ (c) Spectroscopy} \\ \text{ (d) All of the mentioned} \end{array} $

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