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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