Question

Select the correct answer from the list in the bracket:
A covalent compound which in aqueous state conducts electricity. $\left({\mathrm{CuCl}}_2,{\mathrm{CS}}_2,\right.$$\left.{\mathrm{NH}}_3,{\mathrm{C}}_2{\mathrm{H}}_4\right)$

Answer 1

• Step 1 : Definition
• A covalent compound formed the molecule of a covalent bond.
• Step 2 : Correct option is a given bracket :
• An aqueous solution of ammonia is a weak electrolyte. It dissociates partially to give hydroxyl ions, and ions conduct electricity.
• Dissociation of aqueous ammonia :
  ${\mathrm{NH}}_4\mathrm{OH}(\mathrm{aq}.)\to {\mathrm{NH}}_4^{+}(\mathrm{aq}.)+{\mathrm{OH}}^{-}(\mathrm{aq}.)$
• Hence, A covalent compound that in an aqueous state conducts electricity is ${\mathrm{NH}}_3$.