Question

Good morning everyone...

Please answer my questions...

A pure water cannot conduct electricity but salt added water conducts. Why ?

When free ends of a tester are dipped into lemon juice or vinegar , the bulb of the tester glows. Why ? ​

Answer 1

Hello dear!!!...

$<big><b>$

$\huge\bf{Question}$

A pure water cannot conduct electricity but salt added water conducts. Why ?
$\huge\bf{Answer}$

:-This is why pure water can't conduct electricity even during the electrolysis when there are many ions in the solution. IN pure water there is no chance for electricity conduction as it has no free ions.It contains only H X 2 O molecules.

$\huge\bf{Question}$

When free ends of a tester are dipped into lemon juice or vinegar , the bulb of the tester glows. Why ?
$\huge\bf{Answer}$

:-It indicates that lemon juice and vinegar are good conductors of electricity. When the liquid between the two ends of tester allows the electric current to pass, the circuit of the tester becomes complete. The current flows in the liquid circuit and the bulb glows.