Halides Flashcards
What happens to the reducing power as you go down group 7?
reducing power increases
What happens to the oxidising power as you go down group 7?
oxidising power decreases
Does fluoride or chloride undergo redox reactions with concentrated sulfuric acid?
no
Why can F- and Cl- ions not be oxidised by concentrated sulfuric acid?
because they aren’t powerful enough reducing agents
In general, what is the role of the H2SO4?
oxidising agent
In general, what is the role of the X- ion?
reducing agent
Why does oxidising power decrease down group 7?
due to increased atomic radius and greater shielding so less able to accept an electron
What is the appearance of F2(g)?
a pale yellow toxic gas
What is the appearance of Cl2(g)?
green toxic gas
What is the appearance of Br2(l)?
brown corrosive liquid
What is the appearance of I2(s)?
black solid
How does the displacement reactions work between halides?
anything that is lower than it in group 7, it can displace –> F can displace all, I can displace none
