Neha Sharma and Akanksha Dudpuri Solutions for Chapter: Chemical Effects, Exercise 3: Some Questions from NCERT
Neha Sharma Science Solutions for Exercise - Neha Sharma and Akanksha Dudpuri Solutions for Chapter: Chemical Effects, Exercise 3: Some Questions from NCERT
Attempt the free practice questions on Chapter 12: Chemical Effects, Exercise 3: Some Questions from NCERT with hints and solutions to strengthen your understanding. Start Up Science solutions are prepared by Experienced Embibe Experts.
Questions from Neha Sharma and Akanksha Dudpuri Solutions for Chapter: Chemical Effects, Exercise 3: Some Questions from NCERT with Hints & Solutions
Most liquids that conduct electricity are the solutions of _____, _____, _____.
The passage of an electric current through a solution causes _____ (heating / magnetic / chemical) effects.
The process of depositing a layer of any desired metal on another material by means of electricity is called _____.
Name three liquids which when tested in the manner shown in figure may cause the magnetic needle to deflect?
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.
Paheli had heard that rainwater is as good as distilled water. So, she collected some rainwater 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?
Electroplating is used for the purification of copper. A thin plate of pure copper and a thick rod of impure copper are used as electrodes. Copper from impure rod is sought to be transferred to the thin copper plate. Which electrode should be attached to the positive terminal of battery and why?
