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While preparing for the 9th-grade chemistry short question and answer portion, students have to understand all the concepts as well as the meanings of different chemical terms. In our 9th class chemistry online test session, we help students to understand the concepts and theories r thoroughly. Moreover, our précised short question and answer online test of that particular chapter contain simple as well as tricky questions to get practiced for annual exams. These online tests are designed according to the latest Board of Secondary Education prescribed syllabus. Our expert teachers review past papers to write Short questions for the online test session. For every chemistry 9th grade topic the online test session contain short questions with suitable answers for better understanding of the prospective (student) test taker.
Chemistry Chapter 7, Electrochemistry
Electrochemistry is basically a complete unit of chemistry which contains lessons on the combined chemical and electrical effects.
Students will learn about different types of chemical reactions especially those which generate electricity.
Students should learn the oxidation –reduction concepts and reactions to get a clear understanding of this topic.
It would be very helpful if a student knows how to balance chemical reactions with different elements or compound.
Electrolysis process and different electrochemical cells like Galvanic cell are also given in the chapter which has to be understood and learnt.
We at ilmkidunya provide a platform where higher secondary and intermediate students get maximum online help in their studies. We have designed free notes and online tests for students in all topics covered in the syllabus. Students can practice for their 9th class annual exams by attempting these online test sessions .We also publish past papers of every subject for students to get a better understanding of the exam pattern
9th Class Chemistry Chapter 7 Online Preparation
9th Class English Medium Subjects
9th Class Urdu Medium Subjects
Online Short Questions For Chapter 7 "9th Class Chemistry English Medium Chapter 7 Preparation "
Try The Short Questions For 9th Class Chemistry English Medium Chapter 7 Preparation
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Total Questions10
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Available Sets3
Chemistry (New Book) - 9th Class Chemistry English Medium Chapter 7 Preparation
Question # 1
What is meant by Valency and Oxidation state?
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Ans 1: Oxidation state is the apparent charge assigned to an atom of an element in a molecule in an ion.Valency the apparent charge of an atom, ion or molecules which are called Valency
9th Class Chemistry English Medium Chapter 7 Preparation - Set 1
Question # 1
What is meant by Valency and Oxidation state?
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Ans 1: Oxidation state is the apparent charge assigned to an atom of an element in a molecule in an ion.Valency the apparent charge of an atom, ion or molecules which are called Valency
9th Class Chemistry English Medium Chapter 7 Preparation - Set 2
Question # 1
Where does the sodium metal is collected in Downs cell?
- Ans 1: Na Reduced at cathode and molten Na metal floats on dense molten salt mixture from where it is collected in a side tube.
9th Class Chemistry English Medium Chapter 7 Preparation - Set 3
Question # 1
Which ions are discharged at cathode in Nelson's cell and what is produced at cathode?
- Ans 1: The H+ ions are discharge at cathode in nelson's cell . At cathode sodium hydroxide and hydrogen are produced.
