1.

_Salt cake is chemically represented by$?

A. Na‚ÇÇSO‚ÇÑ
B. CaSO‚ÇÑ.1/2 H‚ÇÇO
C. MgSO‚ÇÑ
D. BaSO‚ÇÑ
Answer» B. CaSO‚Äö√á√ë.1/2 H‚Äö√á√áO


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