जॉइन Examsbookउत्तर : 4. "Potassium dichromatic-sulphuric acid"
A ‘breath test’ used by traffic police to check drunken driving uses ____?5
प्र: A ‘breath test’ used by traffic police to check drunken driving uses ____?
- 1Turmeric on filter paperfalse
- 2Silica gel coated with silver nitratefalse
- 3potassium permanganate-sulphuric acidfalse
- 4Potassium dichromatic-sulphuric acidtrue
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उत्तर : 4. "Potassium dichromatic-sulphuric acid"
व्याख्या :
Answer: D) Potassium dichromatic-sulphuric acid Explanation:
समान प्रश्न
Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.