Diagonal Relationship between Beryllium and Aluminum:

5 years ago


Answers : (1)


The ionic radius of Be2+ is estimated to be 31 pm : the charge/ radius ratio is nearly the same as that of the Al3+ ion. Hence beryllium resembles aluminium in some ways. Some of the similarities are:


(i)                  Like aluminum, beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal.

(ii)                Beryllium hydroxide dissolves in excess of alkali to give a beryllate ion, just as aluminium hydroxide gives aluminate ion.

(iii)               The chlorides of both beryllium and aluminium have Cl- bridged chloride structure in vapour phase. Both the chlorides are soluble in organic solvents and are strong Lewis acids. They are used as Friedel Craft catalysts.

(iv)              Beryllium and aluminium ions have strong tendency to form complexes.

5 years ago

Post Your Answer

More Questions On Physical Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details
sir if, in the electrolysis of aqueous solution of Cucl 2, copper is deposited on the negative electrode and clorine gas liberated on the positive electrode at 800K temperature and 1 bar...
CuCl2 -----Cu+Cl2 Cu2+ +2e- ------Cu 2Cl- -------Cl2 +2e- Thus 2 mole of electron or 2F coloumb of charge is required. q=it =2*3600 C mole of electron=.075 mole 2 mole will deposit 1 mole or...
Sunil Kumar FP one month ago
Hello sir, My brother is preparing for IIT-JEE -2016. He has just take admission in class 11 th and coaching. for physical chemistry he has started with ncert, p Bahadur and R c mikherjee....
only OP TANDON book on physical chemistry is enough but if you want to solve much problem then go for only one book for numericals that is P bahadur more than enough for clearing physical...
Sunil Kumar FP 3 months ago
solve essential physical chemistry by ranjeet shai
tushar mehta 3 months ago
mere question ka answer nehi to
tushar mehta 3 months ago
The existence of quantized electronic energy levels is a direct result of the wave like properties of electrons and are allowed solutions of Schrodinger wave equation. Can you explain this...
we have according to debroglie equation for wavelength of a particle l=h/mv where,l=wavelength of the particle h=plancks constant v=velocity of the electron for electron, in a quantised...
Sunil Kumar FP 14 days ago
calculate moles of 100g of the electrons
mass of each electron=9.1*10^-31 kg Therefore 9.1*10^-31 kg corresponds to 1 electron 100 gm of electron will correspond to =(1/9.1*10^-31)*(0.1) electron =10^30 *.109 in terms of mole it...
Sunil Kumar FP one month ago
what is meant by oxox acids and what about metal carbonates and sulphates nitrates
oxoacids are the acids of oxygen .example of such kind of acids are H2CO3,H2SO4,HClO etc METAL CARBONATE metal reacts with carbondioxide of the air to form carbonate.examples are...
Sunil Kumar FP one month ago
Is it possible to use rearrangement and ring expansion to convert five carbon ring into six carbon ring
The nitrogen (N)-containing aromatic rings can be separated into basic aromatic rings that are easily protonated, and form aromatic cations and salts (e.g., pyridinium), and non-basic...
Suraj Prasad 29 days ago
View all Questions »