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Gypsum on being heated to a temperature above 393K forms

  • Option 1)

    POP

  • Option 2)

    Limestone

  • Option 3)

    Soda ash

  • Option 4)

    Anhydrite

 

Answers (1)

best_answer

As we learnt in 

Dead burnt plastic -

Gypsum when heated above 393K, no water of crystallisation is left and anhydrous CaSO_{4} is formed

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 Gypsum (CaSO. 2H2O) when heated above 393K, losses all water of Crystallization and gives anyhydrous CaSO4.


Option 1)

POP

This option is incorrect

Option 2)

Limestone

This option is incorrect

Option 3)

Soda ash

This option is incorrect

Option 4)

Anhydrite

This option is correct

Posted by

divya.saini

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