Question Detail
Question
What is hydrated sodium carbonate (Na₂CO₃.10H₂O) commonly known and used as?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Page 17 explicitly states, 'Hydrated sodium carbonate Na₂CO₃.10H₂O is used as washing soda.'
Hint
The name is directly linked to its common household application.