The number of electron pair shared between two atoms of same elements or different elements during its formation of molecules is known as covalency.

True

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False

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Solution

The correct option is A True
The number of electrons present in electron cloud of bonds or bonded electrons of an atom is called its covalency which is written as the number of electron pair shared between two atoms or same or different elements during its formation.

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Q. The number of electron pair shared between two atoms of same or different elements during its formation of molecules is known as :

Fill in the blanks in the following sentences:
(i) Two atoms of the same element combine to form a molecule. The bond between them is known as .. bond.
(ii) Two chlorine atoms combine to form a molecule. The bond between them is known as....
(iii) In the formation of an oxygen molecule, ... electrons are shared by each atom of oxygen.
(iv) In the formation of a $N_{2}$ molecule, ... electrons are shared by each atom on nitrogen.
(v) The number of single covalent bonds in $C_{2} H_{2}$ molecule are....
(vi) Melting points and boiling points of ionic compounds are generally ... Than those of covalent compounds.

Q. Fill in the blanks in the following sentences:
(i) Two atoms of the same element combine to form a molecule. The bond between them is known as ................ bond.
(ii) Two chlorine atoms combine to form a molecule. The bond between them is known as ..........
(iii) In forming oxygen molecule, .............. electrons are shared by each atom of oxygen.
(iv) In forming N₂ molecule, .............. electrons are shared by each atom of nitrogen.
(v) The number of single covalent bonds in C₂H₂ molecule are ...........
(vi) Melting points and boiling points of ionic compounds are generally ............ than those of covalent compounds.

Q. Two atoms of elements X and Y contribute an electron each during the bond formation and both X and Y have equal tendency to attract the shared electron pair. The type of bond formed between X and Y is____________________.

Q. Assertion: For the formation of a molecule at least two atoms are needed.
Reason: Molecules are formed by bonding between different atoms of different elements or complexes without any exception.

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The number of electron pair shared between two atoms of same elements or different elements during its formation of molecules is known as covalency.

The correct option is A TrueThe number of electrons present in electron cloud of bonds or bonded electrons of an atom is called its covalency which is written as the number of electron pair shared between two atoms or same or different elements during its formation.

The correct option is A True
The number of electrons present in electron cloud of bonds or bonded electrons of an atom is called its covalency which is written as the number of electron pair shared between two atoms or same or different elements during its formation.