AP EAMCET201922 Apr 2019Morning ShiftChemistryCoordination CompoundsActual
Which of the following correctly represents copper sulphate pentahydrate?
Options
- A( [ Cu ( SO ₄ ) ( H ₂ O )₃ ] 2 H ₂ O )
- B( [ Cu ( SO ₄ ) ( H ₂ O )₅ ] )
- C( [ Cu ( H ₂ O )₄ ] SO ₄ H ₂ O )
Correct answer
C. ( [ Cu ( H ₂ O )₄ ] SO ₄ H ₂ O )
Step-by-step solution
Chemical formula of copper sulphate pentahydrate ( [ Cu ( H ₂ O )₄ ] SO ₄ H ₂ O ). Copper sulphate pentahydrate contains (5 H ₂ O ) that is 5 water of crystallisation. The 5 molecules of water present in the crystal framework of the molecule where four water molecules are coordinated to ( Cu ²⁺ ) while one is hydrogen bonded with ( SO ₄²⁻ ). The copper (II) is bound to four water molecules in a square planar geometry and two oxygen atoms from two sulphate ions (one ( H ₂ O ) is ( H ) bonded here). Hence, correct fo