Match List I with List II and select the correct answer using the codes given below the list :
`{:(,"List I","List II",),(1.,"Heavy water",(a)"Bicarbonates of Mg and Ca in water",),(2.,"Temporary hard water",(b)"No foreign ions in water",),(3.,"Soft water",(c)D_(2)O,),(4.,"Permanent hard water",(d)"Sulphates and chlorides of Mg and Ca in water.",):}`

Options

A. 1-c, 2-d, 3-b, 4-a
B. 1-b, 2-a, 3-c, 4-d
C. 1-b, 2-d, 3-c, 4-a
D. 1-c, 2-a, 3-b, 4-d

Answer

D

Explanation

Heavy water is `D_(2)O` (1-c).
Temporaary hard water contains bicarbonates of `Ca^(2+)` and `Mg^(2+)` (2-a)
Soft water may no foreign ions (3-b) Permanent hard water contains sulphates and chlorides of `Ca^(2+)` and `Mg^(2+)` (4-d).