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SSC 10+2SSC 10+2 Hard Mock Set 3Hard GK

SSC 10+2 Mock Test Set 3, Q93: Identify the correct answer for chemical formula of washing soda.

A. Na2CO3·10H2O
B. NaHCO3
C. CaCO3
D. NaCl
Correct Answer: A. Na2CO3·10H2O
Explanation: Washing soda is sodium carbonate decahydrate. Category: SSC 10+2. Set: 3.
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