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Which of the Following Lists of Items Contains Only Ions

Question 73

Multiple Choice

Which of the following lists of items contains only ions?

A) CO₂, H₂O, Na⁺, H^-
B) Na^+,H^-, Pb, Hg
C) Pb, Hg, CO₂, NaCl
D) Cl^-, Na⁺, Ca²⁺, NO3^-
E) NaCl, NO, CO, NaOH

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