Question

Which among the following is an iconic compound? 1.Mgcl2
2.CO2
3.H2O
4.H2

Answer 1

Answer :

$\sf{MgCl_2}$

Explanation :

An ionic compound is the one which is formed by the transfer of electrons from one element to another . In these compounds , the one element is metal while the other is non metal .

The metal loses the electron and gains a positive charge for each electron lost while the non metal gains electron and has a negetive charge for each electron gained . In this way , the metal becomes cation and non metal becomes anion .

Therefore , ionic compounds can also be defined as : The compounds in which a cation and anion are linked with ionic bond is called ionic compounds .

For example : NaCl , KCl , etc.

On the other hand , covalent compounds are formed by the sharing of electrons . These compounds are mainly formed by the elements of p - block and have covalent bonding between Non metal - Non metal .

For example : $\sf{H_2O}$