SSC SSC Selection Post (Phase 13) 2025 Mock Test General Science Chemistry Chemistry in Everyday Life

ಕೆಳಗಿನ ಯಾವ ಸೋಡಿಯಂ ಸಂಯುಕ್ತಗಳನ್ನು ಗಡುಸು ನೀರನ್ನು ಮೃದುಗೊಳಿಸಲು ಬಳಸಲಾಗುತ್ತದೆ?

1
Na2CO3
2
NaHCO3
3
NaOH
4
Na2SO4
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