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
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Answer:
Electrolytes among the given options are (i) dil. HCl and (iv) Lime water.
Explanation:
- Elecctrolytes: Substances which are capable of conducting electricity in aqueous solution are known as electrolytes. They conduct electricity due to the presence of free ions. The dissolved electrolyte dissociates into cations and anions.
- Dilute hydrochloric acid dissociates into hydrogen and chloride ions in aqueous medium and conducts electricity. Lime water also has free ions and acts as an electrolyte. While in the case of Sugar solution and Alcohol in water , free ions are absent and they do not conduct electricity. Thus , they are not electrolyte.
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