a molecule having a covalent bond can be ionic true or false?

Question

it is a true or false question

 

Answer 1

Actually, this is true.  Sodium Carbonate, Na2CO3, is an ionic compound that contains covalent bonds within the carbonate anion. 

Answer 2

True.                

Answer 3

Polyatomic ions involve sharing of electrons (covalent) and gaining/losing electrons (ionic) to fulfill their octet. 

Answer 4

Ionic and covalent are *types* of bonds, not properties of a molecule as a whole.

So, the answer is *literally* false. Also, molecules are neutral (by definition).

However, if the language were cleared up, the question might have been: Can molecules include both ionic and covalent bonds? This is not trivial to answer!

The covalent bonding among atoms can lead to either (neutral) molecules or to charged ions (with the addition or subtraction of extra electrons)(examples of each respectively, H2O and SO4(2-)). But, considering ions, as they pair up with oppositely charged ions to form a salt or an ionic liquid, they rarely do so just to make individual "molecules", i.e. one unit of the compound. The attractive forces vastly favor piling multiple ions up into a lattice, or forming other large-scale assemblies. Still, in the gas phase at low pressures, salts might be vaporized with considerable effort (by electrical means, or by bombardment) to make occasional units of the salt. Another specialized instance might be the joining together of very large, singly-charged ions, where the charged sites are each sterically shielded except in one direction, thus reducing the potential "lattice energy" involved in larger aggregations.

It would be better to say that compounds may include both covalent and ionic bonds; compounds is understood to refer to both exclusively covalently bonded and to ionically assembled materials.

Answer 5

actual definition of covalent bond is the sharing of electron between two non-metals and that of ionic bond is transfer of electron from a metal to non-metal. moreover, a molecule is by definition called a molecule as it exhibits covalent bonding and those who exhibit ionic bonds are called compounds. so if we consider a polyatomic ion then we may have covalent bonds in its individual polyatomic bond which in turn undergoes ionic bonding thus giving ionic bonds! so answer is true from polyatomic ion's perspective though the language of question gets questionable if the polyatomic ions are not included in it though, I will assume that is not the case!

Answer 6

True. Polyatomic ions such as sulfate (SO₄^2-), phosphate (PO₄^3-), and carbonate (CO₃^2-) are formed by covalent bonding between their constituent atoms.

Answer 7

Water, H2O, has covalent bonds.  Salt, NaCl, has ionic bonds.  In the ionic bond an electron is literally exchanged from one atom to the other in the molecule. For example, in salt Na gives up an electron to Cl.  This makes the orbitals in the atoms completly populated.   In covalent bonds the electron is 'shared' between the atoms. 

  A molecule having a covalent bond cannot be ionic.

 

B