Are the bonds in each of the following substances ionic, nonpolarcovalent, or polar covalent?(a) KClionicnonpolar covalentpolar covalent(b) P4ionicnonpolar covalentpolar covalent(c) BF3ionicnonpolar covalentpolar covalent(d) SO2ionicnonpolar covalentpolar covalent(e) Br2ionicnonpolar covalentpolar covalent(f) NO2ionicnonpolar covalentpolar covalentArrange the substances with polar covalent bonds in order ofincreasing bond polarity. (Use the appropriate symbol to separate substances in the list.)

This problem is based on formation of ionic and covalent bonds in compounds. Ionic bonds are formed by the transfer of electrons from one atom to another. Covalent bonds are formed by sharing of electrons between two or more atoms of similar electronegativities.

You are watching: Are the bonds in each of the following substances ionic, nonpolar covalent, or polar covalent?

If the shared electron pair is shared equally between the two atoms, a nonpolar covalent bond is formed, and if it is more attracted towards one atom than another, then a polar covalent bond is formed


Ionic bonds are formed between a metal and a nonmetal.A covalent bond is formed between two nonmetals. When a covalent bond is formed between atoms of same element, it is nonpolar in nature, as the atoms are identical. When a covalent bond is formed between two different nonmetals having different electronegativity, a polar covalent bond is formed.


(a)

*
is made of elements potassium
*
,and chlorine
*

*
is metal

*
is nonmetal

Bond between a metal and nonmetal atom is ionic.

Therefore, the bond present in

*
is an ionic bond.

(b)

*
is made up of four atoms of phosphorus
*

Phosphorus is a nonmetal.

Bond formed between atoms of same nonmetal is a nonpolar covalent bond.

(c)

*
is made of one atom of boron, and three atoms of fluorine.

Both boron and fluorine are non-metals, so they form a covalent bond.

The two atoms

*
and
*
have high electronegativity difference.

So, the bond formed between

*
and
*
is polar covalent bond

(d)

*
is made of one atom of sulphur and two atoms of oxygen.

Both sulphur and oxygen are non-metals, so they form a covalent bond.

The two atoms

*
and
*
have high electronegativity difference.

So, the bond formed between

*
and
*
is polar covalent bond.

(e)

*
is made of two atoms of nonmetal bromine. So it has covalent bond.

See more: Free Printable Groundhog Day Word Searches, Free Printable Groundhog Day Word Search Puzzle

The two atoms come from the same element. So, they form a non-polar covalent bond.