Teaching REET Mock Test Series 2024-25 Level 1 & 2 (Hindi-Sanskrit-English) General Science Chemistry

सोडा एश  का रासायनिक सूत्र क्या है?

1
Na2CO3.2H2O 
2
Na2CO3.H2O 
3
Na2CO3.10H2O 
4
Na2CO3
5
अनुत्तरित प्रश्न
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