How HCl when mixed in water conduct electricity though it(HCl)is a covalent bond?

Asked by Shubhi Gupta | 5th Nov, 2013, 05:16: PM

Expert Answer:

HCl is a polar covalent molecule with a partial positive charge on hydrogen (H+) and a partial negative charge on chlorine (Cl-).

When this is dissolved in water, water too being a polar molecule with a partial positive charge on hydrogen (H+) and a partial negative charge on oxygen (O2-), hydrogen of HCl are surrounded by oxygen of water forming dipole dipole bonds.

HCl + H2O  →  H3O+ + Cl-

When the dipole-dipole bond is formed, the original bond between H and Cl weakens and ultimately breaks leading to ionization.

Molecules are called electrically conductive if they form ions, when dissolved in water.

For HCl,

HCl + H2O  →  H3O+ + Cl-

Hence, HCl when mixed in water conduct electricity though it (HCl) is a covalent bond.

Answered by Hanisha Vyas | 7th Nov, 2013, 11:41: AM

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