Beakers W,X,Y,and Z contain either aqueous NaCl,k₂SO₄,NH₄NO₃,or H₂O.Which beaker contains only distilled water if the light bulb glows brightly when testing the conductivity of beakers W,X,and Y?

Question

Quizplus · Accepted Answer

If the light bulb glows brightly when testing the conductivity of beakers W,X, and Y, it means that they contain either NaCl, k₂SO₄, or NH₄NO₃ (all of which are electrolytes). However, distilled water is not an electrolyte, so the only beaker that can contain distilled water is Z.

Beakers W,X,Y,and Z Contain Either Aqueous NaCl,k₂SO₄,NH₄NO₃,or H₂O