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One True Colour Unit (TCU) is the colour produced by
  • a)
    one mg of formazin in one litre of distilled water
  • b)
    one mg of silicon in one litre of distilled water
  • c)
    one mg of ferric silicon in one litre of distilled water
  • d)
    one mg of platinum as chloroplatinate ions in one litre of distilled water
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
One True Colour Unit (TCU) is the colour produced bya)one mg of formaz...
One True Colour Unit (TCU)

a) One mg of formazin in one litre of distilled water
- Formazin is a synthetic polymer used as a standard for measuring turbidity in water.
- It is not directly related to color measurement and does not produce a specific color.
- Therefore, it does not represent One True Colour Unit (TCU).

b) One mg of silicon in one litre of distilled water
- Silicon is a chemical element that does not produce any specific color in water.
- It does not represent One True Colour Unit (TCU).

c) One mg of ferric silicon in one litre of distilled water
- Ferric silicon is an alloy of iron and silicon.
- It does not produce a specific color in water and does not represent One True Colour Unit (TCU).

d) One mg of platinum as chloroplatinate ions in one litre of distilled water
- Platinum as chloroplatinate ions is a complex compound that produces a specific color in water.
- The color produced by this compound is used as a standard for measuring color in water.
- It represents One True Colour Unit (TCU).

Therefore, the correct answer is option 'D' - one mg of platinum as chloroplatinate ions in one litre of distilled water. This compound produces a specific color and is used as a standard for measuring color in water.
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One True Colour Unit (TCU) is the colour produced bya)one mg of formazin in one litre of distilled waterb)one mg of silicon in one litre of distilled waterc)one mg of ferric silicon in one litre of distilled waterd)one mg of platinum as chloroplatinate ions in one litre of distilled waterCorrect answer is option 'D'. Can you explain this answer?
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