Metal Ion

Which of the central metal ion has the same charge as the metal ion in [Cr(NH₃)₆]Cl₃?

• K₄[Fe(CN)₆]

• [Cr(CN)₆]Cl₃

• [Co(H₂O)₆]Br₂

• K₃[Ni(OH)₆]

Identify the shape for the complex ion of [Co(NH₃)₂(H₂O)₄]Cl₂.

• Tetrahedral

• Square planar

• Octahedral

• Hexagonal

When excess ammonia is added to aqueous Cu²⁺ ion, a complex ion of [Cu(H₂O)₂(NH₃)₄]²⁺ is formed. Which 1of the following statements is true about the reaction above?

• Ammonia acts as a Lewis base.

• [Cu(NH₃)₄]²⁺ is not stable.

• Ammonia is a stronger ligand than water.

• Cu²⁺ is a stable ion.

Tags

NGSS.HS-PS1-1

During the complex formation,

• the metal cation and the ligand share one electron each.

• the metal cation accepts two electrons from the ligand.

• two electrons from the metal are transferred to the ligand.

• the metal cation donates both its d electrons to the ligand.

A solution gives a blue precipitate when sodium hydroxide is added. It contains

• Cu²⁺ ions

• Fe²⁺ ions

• Fe³⁺ Ions

• Ni²⁺ ions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When sodium carbonate is added to a solution of [Cu(H₂O)₆]²⁺ which answers are correct

• A deep blue solution is observed

• Effervescence Is observed

• It is a ligand substitution

• It is an acid base reaction

• a blue precipitate of copper carbonate is formed

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When sodium carbonate is added to a solution of aluminium sulfate which answers are correct

• A white precipitate of aluminium (III) hydroxide is observed

• Effervescence Is observed

• It is an acid base reaction

• A green precipitate is observed

• a precipitate of aluminium (III) carbonate is formed

When dilute aqueous ammonia is added to a solution of [Cu(H₂O)₆]²⁺ which answers are correct

• A blue precipitate of copper (II) hydroxide is observed at first

• Effervescence Is observed

• there is ligand substitution

• blue precipitate dissolves in excess

• A deep blue solution is formed in excess

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When sodium carbonate is added to a solution of [Fe(H₂O)₆]²⁺ which answers are correct

• A rust precipitate is observed

• Effervescence Is observed

• It is a ligand substitution

• It is an acid base reaction

• a green precipitate of iron (II) carbonate is formed

You have a solution of aluminium chloride, which answers are correct

• A white precipitate of aluminium (III) hydroxide is observed when NaOH is added

• a Precipitate dissolves in excess of NaOH

• it gives a white precipitate with barium chloride

• it gives a white precipitate with silver nitrate

• a precipitate of aluminium (III) carbonate is formed when sodium carbonate is added.

Tags

NGSS.HS-PS1-1