Q.

If absorbance is plotted graphically against concentration, the graph is                    

A. Parabola
B. Increasing
C. Straight line
D. Decreasing
Answer» C. Straight line
Explanation: If absorbance is plotted graphically against concentration, a straight line is obtained. A graph derived from the transmittance data will not be a straight line unless transmittance (or percent transmission) is plotted on the log axis of a semi-log paper.
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