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DELHI POLICEDELHI POLICE Hard Mock Set 5Hard GK

DELHI POLICE Mock Test Set 5, Q43: 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: DELHI POLICE. Set: 5.
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