s block part3 Flashcards
1
Q
Most -ve electrode potential in grp1
A
Li
2
Q
Reaction on Li with H2O
A
less vigorous due to high hydration energy of Li
3
Q
The low soluble alkali metal halides are(with reason)
A
LiF: high lattice enthalpy
CsI: low hydration energy
4
Q
Stability of carbonates and bicarbonates of alkali metals
A
Increases down the grp
5
Q
Castner Kellner cell cathode and anode
A
Cathode: Hg
Anode: carbon
6
Q
Preparation of BeF2
A
(NH4)2BeF4 decomposition
7
Q
BeCl2 preparation
A
BeO + C + Cl2 ———-> BeCl2 + CO
8
Q
Mg(NO3)2, Ba(NO3)2 have how many water of crystallization
A
six, zero resp
