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.

(i) Two atoms of the same elements combine to form a molecule. The bond between them is known as covalent bond.

(ii) Two chlorine atoms combine to form a molecule. The bond between them is known as covalent.

(iii) In forming oxygen molecules, two electrons are shared by each atom of oxygen.

(iv) In forming an N₂ molecule, three electrons are shared by each atom of nitrogen.

(v) The number of single covalent bonds in C₂H₂ molecule are

two. 

(vi) Melting points and boiling points of ionic compounds are generally higher than those of covalent compounds.

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Updated on: 10-Oct-2022

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