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प्रश्न
Which of the following is not a double salt?
पर्याय
Dolomite
Carnallite
Washing soda
Potash alum
MCQ
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उत्तर
Washing soda
Explanation:
Washing soda (Na2CO3 . 10H2O) is a simple normal hydrated salt. The others (dolomite, carnallite, potash alum) contain two distinct cations and dissociate into two separate simple salts in solution.
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