हिंदी

Most liquids that conduct electricity are solutions of ________, _______ and ________. - Science

Advertisements
Advertisements

प्रश्न

Most liquids that conduct electricity are solutions of ________, _______ and ________.

रिक्त स्थान भरें
Advertisements

उत्तर

Most liquids that conduct electricity are solutions of acidsbases and salts.

Explanation:

Because these substances dissociate into ions when water dissolves, the free-moving ions allow electric current to pass through the liquid, making it a good conductor of electricity. This property is commonly observed in hydrochloric acid, sodium hydroxide, and sodium chloride.

shaalaa.com
Conductor of Electricity: Liquid
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 11: Chemical Effects of Electric Current - Exercises [पृष्ठ १४६]

APPEARS IN

एनसीईआरटी Science [English] Class 8
अध्याय 11 Chemical Effects of Electric Current
Exercises | Q 1. (a) | पृष्ठ १४६

संबंधित प्रश्न

When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?


The bulb does not glow in the setup shown in figure list the possible reasons. Explain your answer.


Does pure water conduct electricity? If not, what can we do to make it conducting?


In case of a fire, before the firemen use the water hoses, they shut off the main electrical supply for the area. Explain why they do this.


Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour? Explain.


Paheli had heard that rainwater is as good as distilled water. So, she collected some rain water in a clean glass tumbler and tested it using a tester. To her surprise, she found that the compass needle showed deflection. What could be the reasons?


Which one of the following solutions will not conduct electricity?


Observe the circuit given in the figure.


Boojho set up this circuit for purification of copper. What will be the nature of – (i) plate A (ii) plate B (iii) and the solution.

Explain the process of purification.


Boojho made the circuit as shown in the figure. He wanted to observe what happens when an electric current is passed through water. But he forgot to add a few drops of lemon juice to water. Will it make any difference to his observations? Explain.


Observing that the bulb does not glow in the circuit shown in the following figure A, Boojho changed the circuit as shown in the following figure B. He observed deflection in the magnetic compass.

A B
  1. What does the deflection in magnetic compass indicate?
  2. Why did the bulb not glow in the following figure A?
  3. What would be the effect of increase in the number of turns in the coil wound around the magnetic compass in the following figure B?
  4. What will be observed if the number of cells are increased in the circuit shown in the following figure B?

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×