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Olympiad Test: Chemical Effects Of Electric Current - 1


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10 Questions MCQ Test Science Olympiad Class 8 | Olympiad Test: Chemical Effects Of Electric Current - 1

Olympiad Test: Chemical Effects Of Electric Current - 1 for Class 8 2022 is part of Science Olympiad Class 8 preparation. The Olympiad Test: Chemical Effects Of Electric Current - 1 questions and answers have been prepared according to the Class 8 exam syllabus.The Olympiad Test: Chemical Effects Of Electric Current - 1 MCQs are made for Class 8 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Chemical Effects Of Electric Current - 1 below.
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Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 1

A body can be charged by

Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 2

Adding solute salt to water

Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 3

Which of these is not true?

Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 4

The gold-leaf electroscope is used to

Detailed Solution for Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 4

The gold leaf electroscope has been used by physicists for hundreds of years. It indicates the presence and nature of a charge through the application of charge to a metal top plate connected through a stem to two pieces of gold leaf. The movement of one piece of gold leaf away from the other shows that the electroscope is charged.

Hence, a gold leaf electroscope can detect the presence of charge and test the kind of charge.

Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 5

During electroplating, the metal on which electroplating is to be done should be

Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 6

Chromium plating is done on objects like

Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 7

The process of deposition of a layer of any desired metal on another metallic object by means of electricity is called

Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 8

Which of these metals will you electroplate on iron to protect it from rusting and to make it shine?

Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 9

The decomposition of an electrolyte on passing electric current is called

Olympiad Test: Chemical Effects Of Electric Current - 1 - Question 10

In which of these is current not conducted by electrons?

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