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28 Water Analysis MCQ2

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Questions and Answers

What is the unit of measurement for Biochemical Oxygen Demand (BOD)?

mg/cm³

ppm (correct)

mg/L

g/L

What is the principle of the brown ring test for anion testing?

Nitrate produces a brown ring with a specific reagent (correct)

Addition of DPD no. 1 tablet produces a red product

Addition of ammonium molybdate produces a yellow precipitate

Phosphate produces a brown ring with a specific reagent

What is the purpose of Winkler Titration in water analysis?

To estimate the concentration of dissolved solids in water

To determine the dissolved oxygen in water (correct)

To determine the total hardness of water

To estimate the concentration of suspended solids in water

What is the effect of suspended solids on water?

Decreases the clarity of water Signup and view all the answers

Which of the following methods is used to estimate the concentration of dissolved solids in water?

Evaporation Signup and view all the answers

What is the purpose of adding ammonium molybdate in anion testing for phosphate?

To produce a yellow precipitate Signup and view all the answers

What is the condition required for measuring the biochemical oxygen demand (BOD) of a water sample?

The sample must be kept at 20°C, in the dark Signup and view all the answers

What is the effect of suspended solids on water?

It causes turbidity in the water Signup and view all the answers

28 Water Analysis MCQ2

Choose a study mode

Podcast

Questions and Answers

What is the unit of measurement for Biochemical Oxygen Demand (BOD)?

What is the principle of the brown ring test for anion testing?

What is the purpose of Winkler Titration in water analysis?

What is the effect of suspended solids on water?

Which of the following methods is used to estimate the concentration of dissolved solids in water?

What is the purpose of adding ammonium molybdate in anion testing for phosphate?

What is the condition required for measuring the biochemical oxygen demand (BOD) of a water sample?

What is the effect of suspended solids on water?

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