[" In which condition "[pi(H_(2)sigma)_(0)]c_(3)],[" complex becomes colourless "],[" substance? "]

Which is colourless in H_2O ?

Assertion : [Ti(H_(2)O)_(6)]Cl_(3) on heating becomes colourless . Reason : Water is removed on heating [Ti(H_(2)O)_(6)]Cl_(3) .

Assertion : [Ti(H_(2)O)_(6)]Cl_(3) on heating becomes colourless . Reason : Water is removed on heating [Ti(H_(2)O)_(6)]Cl_(3) .

In acidic medium, which of the following becomes colourless -

IUPA name for [Fe(CO)_(2)(sigma-C_(5)H_(5))(pi -C_(5)H_(5))] complex :