Transition Metals

Question 1

What is a transition metal?

Answer 1

An element which forms at least one stable ion with a partially filled d-subshell

Question 2

What is a complex?

Answer 2

A central metal atom or ion with ligands bonded by co-ordinate bonds

Question 3

What is a ligand?

Answer 3

An ion or molecule with a lone pair of electrons which forms a co-ordinate bond with a central metal atom or ion in a complex.

Question 4

What does monodentate mean?

Answer 4

A ligand which uses only one lone pair of electrons to form a co-ordinate bond with a central metal atom or ion in a complex.

Question 5

What is the catalyst in the Haber process?

Answer 5

Iron

Question 6

What is the catalyst in the Contact process?

Answer 6

Vanadium (V) oxide (V₂O₅)

Question 7

What is the catalyst used in the manufacture or nitric acid?

Answer 7

Platinum and Rhodium

Question 8

What are the mondentate ligands?

Answer 8

Water, Ammonia, Thiocyanate, Cyanide, Chloride, Hydroxide.

Question 9

What are the bidentate ligands?

Answer 9

1,2,-diaminoethane and ethanedioate

Question 10

What is the formula for en(1,2-diaminoethane)?

Answer 10

H₂NCH₂CH₂NH₂

Question 11

What is the polydentate ligand?

Answer 11

Edta (ethylenediaminetertraacetic acid)