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Chemistry Notes for Class 9 Chapter 7

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If you are looking for Chemistry Notes for Class 9 Chapter-7, then you are on right place, and have found the your required result. on this post you can find the all type Solution for chemistry class 9 problems. so read this post and take benefits for your studies and share with your Friends.

Here are important MCQs for Chemistry Notes for Class 9, chapter 7

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Chemistry Ch#07, 9th Class

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1 / 59

The oxidation number of all elements in free state is_______

2 / 59

A process of coating a thin layer of Zn on iron is called___________

3 / 59

Sodium hyposulphite dissolves____________

4 / 59

Pure water is a ___________

5 / 59

Cl2 gas is formed, when Cl ions are_________

6 / 59

In order to give longer life, the containers of iron are coated by_________

7 / 59

Which of the following is a common example of silver plating?

8 / 59

In HCl, oxidation number of H is_________

9 / 59

During the formation of water from hydrogen and oxygen, which of the: following does not occur?

10 / 59

In which cell electrical energy is converted into chemical energy?

11 / 59

The percentage of any metal can make up the non-silver portion of a sterling is_______

12 / 59

  1. Chemical formula of rust is__________

13 / 59

Oxidizing agent is a substance which___________

14 / 59

Which cell is used in the manufacturing of sodium metal from fused NaCl?

15 / 59

Which is produced as a result of Redox reaction?

16 / 59

The electrolytic cell is made up of____________

17 / 59

Which ionizes in small extent in water___________

18 / 59

Nelson’s cell is used to prepare caustic soda along with gases. Which of the following gas is produced at cathode?

19 / 59

In Nelson’s cell, cathode is made up of__________

20 / 59

The percentage of silver in sterling silver is_______

21 / 59

The oxidation number of hydrogen in metal hydrides is________

22 / 59

Oxidation always takes place at_______________

23 / 59

In galvanic cell cathode electrode carries__________

24 / 59

Chemical reaction in which the oxidation state of one or more substances changes are called____

25 / 59

Who invented first electrolytic cell?

26 / 59

Oxidation involves__________

27 / 59

Formation of water from hydrogen and oxygen is________

28 / 59

Stainless steel contains___________

29 / 59

Spontaneous chemical reactions take place in____________

30 / 59

Which of the following is a weak electrolyte?

31 / 59

Which of the following is a good electrolyte?

32 / 59

Which ion is not formed during electrolysis of aqueous sodium chloride?

33 / 59

Which is not a property of fine silver?

34 / 59

A region on iron surface when rusting takes place is known as____________

35 / 59

Rusting occurs on___________

36 / 59

Chemical formula of sodium hyposulphite is _____________

37 / 59

The oxidation number of sulphur in H2SO4 is_______

38 / 59

Which gas is evolved during the electrolysis of fused sodium chloride?

39 / 59

The substances which do not ionize in solution and do not allow to pass current through them are called________

40 / 59

The branch of chemistry which deals with the relationship between electricity and chemical reactions.

41 / 59

Which of the following is a non-electrolyte?

42 / 59

Which metal has a great tendency to corrosion?

43 / 59

In neutral molecules, the algebraic sum of the oxidation numbers of all the elements is______

44 / 59

Which acts as anode in Down’s cell?

45 / 59

The oxidation number of oxygen is +2 in_________

46 / 59

The oxidation number of Group-I elements is_________

47 / 59

The oxidation number of chromium in K2Cr2O7 is____________

48 / 59

Sterling silver is an alloy of silver and________

49 / 59

In early nineteenth century photographers produce crude images using papers covered with_____

50 / 59

Example of electrolytic cell is___________

51 / 59

During electrolysis of sodium chloride in aqueous state, which gas is evolved from the cathode electrode?

52 / 59

Corrosion of iron is called____________

53 / 59

Which of the following is NOT an electrolyte?

54 / 59

Sodium hydroxide is manufactured in__________

55 / 59

Which of the following is a corrosion resistant metal?

56 / 59

Which medium accelerates the process of rusting?

57 / 59

The most common example of corrosion is________

58 / 59

Which of the following is NOT an electrolytic cell?

59 / 59

In the Redox reaction between Zn and HCI, the oxidizing agent is_______

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Chemistry Notes, Problems for Class 9th

Chemistry, a new subject for 9th Class, having a lot of concepts, starting from a single definition of the smallest particle of our universe which is called ‘atom’. In the 8th grade usually, we have to study only one book of science that combines chemistry, physics, and biology. But as, we got into 9th class and with every passing day things starts to get more complex now. similarly we got three books instead of just one science book.

And, if you any student of 9th Class feeling difficult to understand the concept of chemistry. Then, these chemistry notes for class 9 are enough. by Understanding chemistry Notes for 9th class means remembering a lot of concepts. Consider that particular subject important in which you want to study for your whole life. And, read more than just the textbook about that particular subject. If you think you want to study chemistry for your whole life that’s great, our country also need chemists.

Chemistry class 9 pdf

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Chapter wise PDF Notes / Problems / Solution of Chemistry 9th Class

                     Chapter-01 – Fundamentals of Chemistry

                     Chapter-02 – Structure of Atoms 

                     Chapter-03 – Periodic Table and Periodicity of Properties

                     Chapter-04 – Structure of Molecules 

                     Chapter-05 – Physical States of Matter 

                     Chapter-06 – Solutions 

                     Chapter-07 – Electrochemistry 

                     Chapter-08 – Chemical Reactivity 

                     Pairing Scheme for 2021 – Chemistry 9th Class

 

 

 

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