Group IV Flashcards
0
Q
Give an equation to show Sn2+ as a reducing agent
A
Sn2+ + I2 = Sn4+ + 2I-
1
Q
What are Si and Ge generally known as?
A
Metalloids
2
Q
Give an equation to show PbO2 as an oxidising agent
A
PbO2 + 4HCl = PbCl2 + 2H2O + Cl2
3
Q
Give an equation to show CO behaving as a reducing agent
A
Fe2O3 + 3CO = 3CO2 + 2Fe
4
Q
Show CO2 behaving as an acidic oxide
A
CO2 + 2NaOH = Na2CO3 + H2O
5
Q
Show how PbO is an amphoteric oxide
A
- PbO + 2HCl(conc) = PbCl2 + H2O
2. PbO + 2OH- + H20 = [Pb(OH)4]2-
6
Q
What does SiCl4 form when it’s hydrolysed by water?
A
SiO2 and 4HCl
7
Q
What 2 compounds are formed when Pb2+ reacts with NaOH?
A
- Pb(OH)2
2. (NaOH in excess) [Pb(OH)4]2-
