alleryStart learning →Solid sodium chloride does not conduct electricity but its solution does. Why?
AIons become free to move
BWater carries no charge
CSalt turns into a metal
DNew electrons form in it
Answer & Solution
Correct answer: A. Ions become free to move
Ions are locked in the crystal when solid, but in solution they are mobile charge carriers.
Keep practising Acids, bases and salts
Browse all Acids, bases and salts questions for Olympiad (Class 7), or explore more Science topics.
Related questions
An acid raises the hydronium concentration in water. What does a base do?Ammonia solution acts as a base though NH3 has no hydroxide. Why?Which statement is true for sodium hydroxide solution in water?In water, the free H+ ion is found as theWhich substance is used in a soda acid fire extinguisher?Calcium burns in chlorine gas. Which salt forms?Zinc oxide reacts with both acids and bases. Such a substance is calledFireworks get their colours mainly from