Everyday Science MCQs
Q A ‘breath test’ used by traffic police to check drunken driving uses ____?
  • A A. Turmeric on filter paper
  • B B. Silica gel coated with silver nitrate
  • C C. Potassium permanganate-sulphuric acid
  • D D. Potassium dichromatic-sulphuric acid
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Word of the Day
16 Jul
Volatile
(of a substance) easily evaporated at normal temperatures.
بدلتے مزاج والا، کافور صفت

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