Question

Why NH3 gas a covalent compound does not conduct electricity but its aq. solution NH4OH is a weak electrolyte

Answer 1

because in NH3 there are free flow of electrons so it does not conduct electricity. NH4OH is a weak electrolyte because it have OH in which there is flow of free electrons

Answer 2

As $NH_4OH$ has the ability to dissociate into ions, it acts as weak electrolyte.

Explanation:

• For a substance to act as electrolyte, it must have the ability to dissociate into anions and cations when reacted with water.
• When the given two compound, $NH_3$ and $NH_4OH$ reacts with water it shows the following reaction:

$NH_3+H_2O\rightarrow NH_4OH$

$NH_4OH$⇄ $NH_4^++OH^-$

• As ammonium hydroxide ionizes and yields cation ($NH_4^+$) and anion ($OH^-$), it has the ability to conduct electricity.
• Thus this the factor accounts for the ability of $NH_4OH$ to act as weak electrolyte and conduct electricity.

Learn more about such concept

State one difference between strong electrolyte and weak electrolyte

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