Q46.A solution of sodium sulphate contains 92 ๐ of Na+ ions per kilogram of water. The molality of Na+ ions in that solution in mol kg-1 is: (1) 16 (2) 4 (3) 12 (4) 8
What This Question Tests
This question tests the recall of permissible concentration limits for various metals in drinking water according to environmental chemistry standards.
Concepts Tested
๐ NCERT Sections This Tests
1.25 โ Amongst The Following Compounds, Identify Which Are Insoluble, Partially
Chemistry Class 11 ยท Chapter 1
1.25 Amongst the following compounds, identify which are insoluble, partially soluble and highly soluble in water? (i) phenol (ii) toluene (iii) formic acid (iv) ethylene glycol (v) chloroform (vi) pentanol. 1.26 If the density of some lake water is 1.25g mLโ1 and contains 92 g of Na+ ions per kg of water, calculate the molarity of Na+ ions in the lake.
1.3 โ Define The Following Terms:
Chemistry Class 11 ยท Chapter 1
1.3 Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.
1.27 โ If The Solubility Product Of Cus Is 6 ร 10โ16, Calculate The Maximum Molarity Of
Chemistry Class 11 ยท Chapter 1
1.27 If the solubility product of CuS is 6 ร 10โ16, calculate the maximum molarity of CuS in aqueous solution.
๐ Question Details
- Chapter
- Environmental Chemistry
- Topic
- Water pollution, heavy metals in drinking water
- Year
- 2019
- Shift
- 09 Jan Shift 1
- Q Number
- Q46
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 16: Environmental Chemistry
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