Question

which of the following solutions are electrolyte?
i. dil. HCI
ii.Sugar solution
iii. Alcohol in water
iv. Lime water
A. i and ii
B. i and iv
C. ii, iii and iv
D. i, ii and iv​

Answer 1

Answer:

option B is the answer

sugar solution and alcohol don't produce ions so can't conduct electricity

Answer 2

Among the following, the solutions that are electrolytes are dil. HCI and Lime water. Thus, the correct option is B. i and iv.

Explanation:

• The substances that can dissociate into ions in water can act as electrolytes.
• It conducts electricity due to the presence of ions in the aqueous phase.
• Dilute HCl dissociates into $\[{H^ + }\]$ and $\[C{l^ - }\]$ ions.
• Lime water is $\[Ca{(OH)_2}\]$. It dissociates into $\[C{a^{2 + }}\]$ and $\[2O{H^ - }\]$ ions.
• Therefore, they act as electrolytes.
• Sugar and alcohol do not dissociate into ions. Therefore, they do not act as electrolytes.