Consider the following differences between Hard water and Soft water:

  1. While hard water has high calcium and magnesium content, soft water has high sodium content
  2. Hard water does not easily lather with soap, whereas soft water easily lather with soap

   Which of the above statements is/are correct?

Answer: [C] Both 1 & 2

Both are correct statements
Hard water is generally found in areas where groundwater is in contact with limestone, chalk and dolomite and gets higher amount of calcium and magnesium dissolved in it. Soft water is found in areas where groundwater usually travels through peat, igneous rock or sandstone sources, and does not contain as much calcium and magnesium. In fact, it contains higher amount of sodium ions.

This question is a part of GKToday's Integrated IAS General Studies Module