Civil Engineering MCQs
Q For detecting the nitrates in sewage, the colour may be developed by adding________________?
  • A A. Potassium permanganate
  • B B. Sulphuric acid and napthamine
  • C C. Phenol-di -sulphuric acid and potassium hydroxide
  • D D. None of these
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Word of the Day
26 Jul
Simultaneously
at the same time.
ایک ہی ΩˆΩ‚Ψͺ Ω…ΫŒΪΊΨŒ ایک Ψ³Ψ§Ψͺھ، بیک ΩˆΩ‚Ψͺ

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