Question

The color in water can be indirectly measured through: a. Solution pH using pH meter b. Absorbance using spectrophotometer c. Weight analysis using gravimetric method d. All of the above​

Answer 1

Answed. All of the above

Answer 2

The colour in water can be indirectly measured through All of the above​.

Option (d).

Explanation:

• pH meter is an electric device used to measure hydrogen-ion activity in solution.

• The colour of water is extremely pH dependent. It increases as the pH of water is raised.

• Hence, the colour in water is measured by pH meter.

• Spectrophotometer is an optical instrument which measures the light intensity of a sample.

• Measurement of colour in water is determined by the absorbance of the light by using this instrument.

• Weight analysis using gravimetric method involves the analysis of the sample through the measurement of mass.

• This method helps to measure the water colour.

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