s block part2 Flashcards
1
Q
MP of alkali metals order
A
Li> Na> K> Rb> Cs
2
Q
Formation of halides(order of halogens)
A
F>Cl>Br>I
3
Q
Formation of fluorides
A
LiF>NaF>KF>RbF>CsF
4
Q
Formation of chlorides iodides bromides
A
CsCl>RbCl>KCl>NaCl>LiCl
5
Q
Li Mg with ethyne
A
Do not react with ethyne to form ethynide
6
Q
Solvay
A
NH3 + CO2 + O2 ——–> (NH4)2CO3
(NH4)2CO3 + CO2 + H2O ——–> NH4HCO3
NH4HCO3 + NaCl ——–> NaHCO3 + NH4Cl
NaHCO3 ——-> Na2CO3 + H2O + CO2
Regeneration of ammonia:
NH4Cl + Ca(OH)2 ———-> CaCl2 + NH3 + H2O
7
Q
Reason for K2CO3 not being prepared from solvay
A
KHCO3 too soluble in water
