Lithium is the strongest reducing agent because of
its greater hydration energy
its high ionization energy
its high electron affinity
its low electronegativity
Which of the following is an organometallic compound?
Lithium acetate
Methyl lithium
Lithium dimethyl amide
Lithium methoxide
The first ionisation potential (in eV) of N and O atoms are
14.6, 13.6
13.6, 14.6
13.6, 13.6
14.6, 14.6
Correct order for solubility of alkaline earth metals in water is
MgF2 > CaF2 > SrF2 > BaF2
MgF2 <CaF2 <SrF2 <BaF2
MgF2 > CaF2 < SrF2 < BaF2
BaF2 >MgF2 >SrF2 >CaF2
The second ionisation enthalpies of Li, Be, B and C are in order
Li > B > C > Be
Li > C > B > Be
Be > C > B > Li
B > C > Be > Li
The first four ionisation enthalpy values of an element are 191 kcal mol-1 578 kcal mol-1 872 kcal mol-1 and 5962 kcal mol-1 .The number of valence electrons in the element is
1
2
3
4
C.
3
In the given statement, first three IE values are low, but 4th IE value is quite high and cannot be achieved (1.e 5962 kcal/mol).
Only three (3) electrons are possible in the valence shell.
The possible valency is (3).
The main product obtained when a solution of sodium carbonate reacts with mercuric chloride is
Hg(OH)2
HgCO3HgO
HgCO3
HgCO3.Hg(OH)2