Chemistry · Water Hardness
जल में क्या डालने से उसकी अस्थायी कठोरता दूर हो जाती है?
- 1कैल्शियम कार्बोनेट
- 2पोटैशियम परमैंगनेट
- 3सोडियम क्लोराइड
- 4बुझा चूना (कैल्शियम हाइड्रॉक्साइड)✓
सही उत्तर देखें
बुझा चूना (कैल्शियम हाइड्रॉक्साइड)
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