Which of the following statements are correct?

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Anhydrous MgCl₂ cannot be prepared by heating MgCl₂ · 6H2

Anhydrous CaCI2 is used in drying gases and organic compounds but not NH3 or ethyl alcohol due to the formation of CaCl₂ · 8NH₃ and CaCl₂ · 4C₂H₅OH

Leblanc's process is used for preparation of both Na₂CO₃ and K₂CO₃ but not solvay process

KOH is preferably used compared to NaOH for absorption of CO₂ because KHCO₃ formed is soluble whereas NaHCO₃ is sparingly soluble and therefore, choke the tubes of apparatus used

answer is A.

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Detailed Solution

Anhydrous MgCl₂ cannot be prepared by heating MgCl₂ · 6H2 as it undergoes partial hydrolysis.

Also, anhydrous CaCI2 is used in drying gases and organic compounds but not NH3 or ethyl alcohol due to the formation of CaCl₂ · 8NH₃ and CaCl₂ · 4C₂H₅OH

Leblanc's process is used for preparation of both Na₂CO₃ and K₂CO₃ but not solvay process

KOH is preferably used compared to NaOH for absorption of CO₂ because KHCO₃ formed is soluble whereas NaHCO₃ is sparingly soluble and therefore, choke the tubes of apparatus used.

Thus, all the options are correct.

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