Multiple choice

Molecular formula of Glauber’s salt is _________.

  1. Na2SO4.10.H2O

  2. Na(NH4)HPO4

  3. Na2CO3.10H2O

  4. Na2SO4

  5. Na2SO4.7H2O
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A Correct answer
Explanation

Molecular formula of Glauber’s salt is Na2SO4.10.H2O. Dissolving salt cake (Na2SO4) in water and crystallisation at 32 oC yields Glauber’s salt.

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