Covalent compounds exhibit different physical properties in comparison to electrovalent compounds. Justify by giving suitable reasons.

Open in App

Solution

The difference in physical property:
Covalent Compound
Electrovalent compound
Physical property
Reason
Physical property
Reason
1. Physical state
The covalent compounds may exist in a solid, liquid, or gaseous state.
e.g. $H_{2}$ , $HCl$ , graphite.

These compounds are formed by the atoms of gaseous elements or soft solid elements which have a weak intermolecular attraction force.
1. Physical state
The electrovalent compound generally exists in solid-state.
e.g. - $NaCl$
These compounds are formed as a result of donating or accepting electrons, thereby forming an ionic bond, which has a strong intermolecular attraction force.
2. Boiling and melting point
Covalent compounds have low boiling and melting points.
This is because of the presence of weak intermolecular forces between the atoms, which need less energy to break the bonds between the atoms.
2. Boiling and melting point
These compounds have high boiling and melting points.
This is because these are formed by the ions which are held together with a strong intermolecular attraction force. and thus needs a high amount of energy to break the bond
3. Conductivity
The covalent compounds are poor conductors of electricity even in the molten state.
This is because these compounds are formed by electron sharing and they do not have any free ions or charged atoms to conduct electricity.
3. Conductivity
The electrovalent compounds are good conductors of electricity.
This is because they are formed with the anions and cations of different elements.so they have ions present in them to conduct electricity.

Suggest Corrections

Similar questions

State four differences between electrovalent and covalent compounds.

Define: (a) an electrovalent compound (b) a covalent compound.

Taking MgCl₂as an electrovalent compound. CCl₄ as a covalent compound, give four differences between electrovalent and covalent compounds.

Explain the difference between electrovalent and covalent compounds.

taking MgCl₂ sa an electrovalent CCl₄as a covalent compound ,give four difference between electrovalent andcovalent compound

Join BYJU'S Learning Program

Covalent Compound		Electrovalent compound
Physical property	Reason	Physical property	Reason
1. Physical state The covalent compounds may exist in a solid, liquid, or gaseous state. e.g. $H_{2}$ , $HCl$ , graphite.	These compounds are formed by the atoms of gaseous elements or soft solid elements which have a weak intermolecular attraction force.	1. Physical state The electrovalent compound generally exists in solid-state. e.g. - $NaCl$	These compounds are formed as a result of donating or accepting electrons, thereby forming an ionic bond, which has a strong intermolecular attraction force.
2. Boiling and melting point Covalent compounds have low boiling and melting points.	This is because of the presence of weak intermolecular forces between the atoms, which need less energy to break the bonds between the atoms.	2. Boiling and melting point These compounds have high boiling and melting points.	This is because these are formed by the ions which are held together with a strong intermolecular attraction force. and thus needs a high amount of energy to break the bond
3. Conductivity The covalent compounds are poor conductors of electricity even in the molten state.	This is because these compounds are formed by electron sharing and they do not have any free ions or charged atoms to conduct electricity.	3. Conductivity The electrovalent compounds are good conductors of electricity.	This is because they are formed with the anions and cations of different elements.so they have ions present in them to conduct electricity.