Group 16-Big daddy petr

Question 1

What happens to stretching frequencies for different O2 as you weaken the bond?

Answer 1

Decrease

Question 2

Why is S8 most stable?

Answer 2

Tends to prefer single as poor overlap of p-orbitals.

Question 3

What happens when providing heat to S8?

Answer 3

Chains break and become a mess, but cool back to S8, then heat to become crown.

Question 4

What are the common halides for gp 16?

Answer 4

E2X2 EX2 EX4

Question 5

All S halides are reactive except for SF6, why?

Answer 5

Its kinetically favourable, but very sterically hindered!

Question 6

Name the main 2 sulfur oxyhalides, and give the main 2 uses.

Answer 6

Sulfuryl chloride(SO2Cl2), thionyl chloride(SOCl2)
Chlorination and dehydration.

Question 7

What are the by-products from the chlorniation and dehydration? Why is this useful?

Answer 7

SO2 and HCl, can be removed easily.

Question 8

True/false, SO2 and SO3 are LA.

Answer 8

True, resonance and a dative bond allows them to be LA.

Question 9

Main way to make sulfuric acid:

Answer 9

SO3+H2O->H2SO4

Question 10

Te forms what?

Answer 10

Te(OH)6, protons can be replaced e.g. Ag6TeO6