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Statement 1: CuSO4.5H2O on heating to 250oC loses all the five H2O molecules and becomes anhydrous.

Statement 2: All five H2O molecules are coordinated to the central Cu2+ ion.

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By Expert Faculty of Sri Chaitanya
a
Both statements 1 and 2 are correct
b
Statement 1 is correct statement 2 is incorrect
c
Statement 1 is incorrect statement 2 is correct
d
Both statements 1 and 2 are incorrect

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detailed solution

Correct option is B

Statement 1: True, CuSO4.5H2O→250oCCuSO4white+5H2O. Anhydrous copper sulphate becomes whitebecause there is no d-d transition of electron in absence of ligands according to crystal field theory.Statement 2: False, Four water molecules are coordinated to Cu2+ and fifth one is hydrogen bonded to two water molecules and anion, SO42−.


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