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Flashcards in Group IV Deck (8)
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What are Si and Ge generally known as?

Metalloids

1

Give an equation to show Sn2+ as a reducing agent

Sn2+ + I2 = Sn4+ + 2I-

2

Give an equation to show PbO2 as an oxidising agent

PbO2 + 4HCl = PbCl2 + 2H2O + Cl2

3

Give an equation to show CO behaving as a reducing agent

Fe2O3 + 3CO = 3CO2 + 2Fe

4

Show CO2 behaving as an acidic oxide

CO2 + 2NaOH = Na2CO3 + H2O

5

Show how PbO is an amphoteric oxide

1. PbO + 2HCl(conc) = PbCl2 + H2O

2. PbO + 2OH- + H20 = [Pb(OH)4]2-

6

What does SiCl4 form when it's hydrolysed by water?

SiO2 and 4HCl

7

What 2 compounds are formed when Pb2+ reacts with NaOH?

1. Pb(OH)2

2. (NaOH in excess) [Pb(OH)4]2-