Q34.The metal salts formed during softening of hardwater using Clark's method are (1) CaOH2 and MgOH2 (2) CaCO3 and MgOH2 (3) CaOH2 and MgCO3 (4) CaCO3 and MgCO3
What This Question Tests
This question assesses knowledge of water softening methods, specifically Clark's method, and the chemical species that precipitate during the process.
Concepts Tested
📚 NCERT Sections This Tests
2.1 — Arrange The Following Metals In The Order In Which They Displace Each Other
Chemistry Class 11 · Chapter 2
2.1 Arrange the following metals in the order in which they displace each other from the solution of their salts. Al, Cu, Fe, Mg and Zn.
1.25 — Amongst The Following Compounds, Identify Which Are Insoluble, Partially
Chemistry Class 11 · 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 mL–1 and contains 92 g of Na+ ions per kg of water, calculate the molarity of Na+ ions in the lake.
5.13 — Aqueous Copper Sulphate Solution (Blue In Colour) Gives:
Chemistry Class 11 · Chapter 5
5.13 Aqueous copper sulphate solution (blue in colour) gives: (i) a green precipitate with aqueous potassium fluoride and (ii) a bright green solution with aqueous potassium chloride. Explain these experimental results.
📋 Question Details
- Chapter
- Hydrogen
- Topic
- Hardness of Water, Clark's Method
- Year
- 2022
- Shift
- 28 Jul Shift 1
- Q Number
- Q34
- Type
- Conceptual
- NCERT Ref
- Class 11 Chemistry Ch 9: Hydrogen
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