Dhiren M Doshi Solutions for Chapter: Chemical Effects of Electric Current, Exercise 2: Exercise
Dhiren M Doshi Science Solutions for Exercise - Dhiren M Doshi Solutions for Chapter: Chemical Effects of Electric Current, Exercise 2: Exercise
Attempt the practice questions on Chapter 14: Chemical Effects of Electric Current, Exercise 2: Exercise with hints and solutions to strengthen your understanding. LEARNING SCIENCE solutions are prepared by Experienced Embibe Experts.
Questions from Dhiren M Doshi Solutions for Chapter: Chemical Effects of Electric Current, Exercise 2: Exercise with Hints & Solutions
Why are iron objects electroplated with chromium?
Sahil is a jeweller. He usually electroplates the jewellery made from the cheap metal with expensive metals like gold and silver. He sells them at high prices and makes high profit.
(a) What is electroplating?
(b) Is it right to cheat others and make profit? Why/Why not?
Describe the electroplating of copper on an iron strip.
Why is it not safe for an electrician to carry out electrical repairs in the outdoor areas during heavy downpours?
A child finds that the bulb glows more brightly in the case of seawater than the drinking water with his tester. Give reasons.
After doing an activity of electroplating an iron strip, a student interchanged the connections of the electrodes. What do you think will happen?
Why do you think some liquids can conduct electricity while some cannot?
Distilled water is a bad conductor of electricity. How can you make it a good conductor of electricity?
