true or falde

The phosphate buffer is a corrosive hazard.

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A light source, diffraction grating, and pH electrotrode are components found in a spectrophotometer.

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The reaction product p-nitroaniline is both corrosive and toxic.

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All used chemicals for this experiment must be collected in a waste bottle.

False
In a spectrophotometer white light is split into its component colors by diffraction grating.

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Visible light falls between x-rays and ultraviolet in the electromagnetic spectrum

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The rate of reaction must be measured to two different concentrations to determine the order of reaction