Question

Which of the following compounds can make pure water conduct electricity?

• A. $\text{NaCl}$
• B. $\text{NaOH}$
• C. ${\text{H}}_2{\text{SO}}_4$
• D. $\text{HCl}$

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A $\text{NaCl}$
B $\text{NaOH}$
C ${\text{H}}_2{\text{SO}}_4$
D $\text{HCl}$

Pure water is a bad conductor of electricity. When certain salts, acids and alkalis are dissolved in water, they conduct electricity and make pure water also conducting. For example, dilute sulphuric acid is added into water during its electrolysis.