Question

What is covalent bonding ? How is it defer from ionic bonding ? Compare the properties of covalent and ionic compounds .

Answer 1

bond bw two atoms having very few electronegativity difference ic covelent bonding
in ionic bonding two atoms with high en difference make such bond
in ionic bond complete transfer of electrones take place while in covalent bond sharing of electrones takes place
ionic bonds r much stronger than covalent bond

Answer 2

ĀÑSWĒR ⏬⏬

⭕ COVALENT BONDING :

It is a chemical link between two atoms or ions in which the electron
pairs are shared between
them.


◽ It is also called a MOLECULAR BOND.

⭕ COVALENT BOND is differ from ionic bonding.

▶ Covalent bond : bond  in which one or more pairs of electrons are shared by two atoms.

▶Ionic bond: bond in which one or more electrons from one atom are removed and attached to another atom, resulting in positive and negative ions which attract each other.

⭕ PROPERTIES :

⭕ Ionic Compounds :
◽ They are formed as a result of complete transfer of electrons (gain or loss) from one atom to another.

◽ These compounds are generally solids.

◽They are made up of ions with powerful electrostatic forces of attraction.

◽They have generally high melting and boiling points.

◽They are generally soluble in polar solvents like water and insoluble inorganic solvents.

◽ Ionic compounds conduct electricity in the
molten or dissolved state.

⭕Covalent Compounds :

◽They are formed by sharing of electrons between two atoms.
◽These compounds may be solids, liquids or gases.

◽They are made up of molecules held together by weak van der Waals forces of attraction.

◽ They have generally low melting and boiling points.

◽Covalent compounds are generally soluble in non-polar solvents such as benzene and insoluble in polar solvents.

◽ Covalent compounds are generally bad conductors of electricity.

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