Electrolytes are substances that dissociate into ions when dissolved in water, allowing the solution to conduct electricity.
Let's analyze the given options:
A. NH4Cl and KCl: Both ammonium chloride (NH4Cl) and potassium chloride (KCl) are ionic compounds that dissociate into their respective ions in solution, making them both electrolytes.
B. KCl and CH3OH: Potassium chloride (KCl) is an electrolyte, but methanol (CH3OH) is a molecular compound that does not dissociate into ions in solution, so it is not an electrolyte.
C. NH4Cl and C6H12O6: Ammonium chloride (NH4Cl) is an electrolyte, but glucose (C6H12O6) is a non-electrolyte because it does not dissociate into ions when dissolved in water.
D. C6H12O6 and CH3OH: Both glucose (C6H12O6) and methanol (CH3OH) are non-electrolytes and do not dissociate into ions in solution.
Based on the analysis, the only option that contains compounds classified as electrolytes is:
A. NH4Cl and KCl.
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