Answer to Question #154034 in Organic Chemistry for lara

Question

I only need the answers please, I want to check if I am correct. Thanks in advance

Which type or types of bonding exist within the complex ion [Cr(H₂O)₆]³⁺?

A. Dative covalent only

B. Dative covalent and covalent only

C. Dative covalent and ionic only

D. Dative covalent, covalent and ionic

In which of these complex ions does the transition metal have an oxidation number of+3?

A. [Ag(CN)2]-

B. [CuCl4]2-

C.[Fe(CN)6]3-

D. [Ni(EDTA)]2-

Which best explains why [Cu(NH3)2]+ ions are colourless?

A. all complex ions having a metal ion with a +1 charge are colourless

B. no electronic transitions can take place between d orbitals

C. the d orbitals cannot split in energy

D. there are no electrons in the d-subshell

Answer 1

Answer:

1) C

2) C

3) D