Class 9 Online Courses

Chapter 2: Class 9 Chemistry Exam Tests

Class 9 Chemistry MCQs - Chapter 2

Electrochemistry Multiple Choice Questions (MCQ) PDF - 4

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Electrochemistry Questions & Answers PDF Download: MCQ Quiz 4

MCQ 16: The electrolyte among the following is

A) NaOH
B) urea
C) glucose
D) benzene

MCQ 17: The process used to deposit one metal over another metal is called

A) electrolysis
B) electroplating
C) carbon plating
D) none of above

MCQ 18: A physical or chemical process that occurs by itself is called

A) non spontaneous
B) self occurring process
C) spontaneous process
D) thermodynamic process

MCQ 19: Voltaic cells generate electricity by

A) spontaneous redox reaction
B) non spontaneous redox reaction
C) sublimation reaction
D) thermochemical reaction

MCQ 20: The oxidation state of any free element is always

A) 1
B) 2
C) 3
D) 0

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