Which of the following substances is insoluble in water?
- A$H_2O$
- B$HgCl_2$
- C$Ca(NO_3)_2$
- D$CaF_2$
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In the hardening stage of Plaster of Paris, the compound formed is:
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View SolutionThe compound formed when gypsum is dissolved in aqueous ammonium sulphate solution is:
Which of the following alkaline earth metals has the greatest tendency to form covalent compounds?
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