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InterviewSolution
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State giving reasons, in which state or medium does(1) NaCl,(2) HCI gas(3) NH3 gas conduct electricity. |
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Answer» 1. NaCl will conduct electricity only molten state or when dissolved in water. This is because the Na+ and Cl– ions present in solid NaCl are too big to move under the influence of applied electric field. 2. HCI gas is a polar covalent compound when dissolved in water, it will ionise to give H+ and CP ions. Under the influence of applied electric field these ions can easily move in an aqueous solution and thus conduct electricity. Thus HCI (g) when dissolved in water conducts electricity. 3. NH3 (g) will dissolved in water to give NH4OH. NH3 (g) + H2O (l) → NH4OH (aq) NH4OH(aq) ⇋ NH+4 (aq) + OH-(aq) NH4OH will ionise to give NH4+ and OH– ions. Under the influence of applied electric field these ions can migrate in an aqueous solution and hence conduct electricity. Thus NH3 (g) when dissolved in water conduct electricity. |
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