General Chemistry » Exercise – 1
14. Permanent hardness of water may be removed by the addition of :
(a) sodium carbonate
(b) alum
(c) potassium permanganate
(d) lime
Subject Name : Chemistry |
Exam Name : JEE, NEET, IIT GATE, IIT JAM, UGC NET, UPSC, SSC, KVS, NVS |
Posts Name : Technical Assistant, Junior Scientist, Post Graduate Teacher, Lecturer |
Chemistry Books |