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Chemistry Notes for Class-9 Chapter-1

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Fundamentals of Chemistry:

If you are looking for Chemistry Notes for Class 9 Chapter-1 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 1

Try and Practice/ Play this MCQs Series again and again to get the grip on this MCQs Chapter-01 of Chemistry,9th Class, Fundamentals of Chemistry.

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Chemistry Ch#01, 9th Class

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1 / 50

Which type of molecular ions are present in plasma?

2 / 50

A piece of matter in pure form is termed as _________

3 / 50

Empirical formula of glucose is______

4 / 50

Which of the followings are tri-atomic molecule except?

5 / 50

Which one is a physical property?

6 / 50

Example of heterogeneous mixture is ___________

7 / 50

Brass is a mixture of___________

8 / 50

The molar mass of H2S04 is__________

9 / 50

Empirical formula of acetic acid (CH3COOH) is _________

10 / 50

Formula mass of K2SO4 is___________

11 / 50

Which one is extremely reactive species?

12 / 50

Which one of the following is molar mass of O2 in amu?

13 / 50

One amu (atomic mass unit) is equivalent to_______

14 / 50

Industrial chemistry deals with the Manufacturing of compounds_________

15 / 50

Empirical formula of sand is________

16 / 50

Fourth state of matter is__________

17 / 50

Which one of the following elements is found in most abundance in the earth's crust?

18 / 50

The mass of one molecule of water is________

19 / 50

Mass of 3 moles of oxygen atoms is ___________

20 / 50

Example of covalent compound is _________

21 / 50

Valency of oxygen is___________

22 / 50

1-gram atom of carbon contains how many moles is_________

23 / 50

Atom is electrically______

24 / 50

Example of mono atomic molecule is___________

25 / 50

Number of protons in the nucleus of an atom is called ________

26 / 50

Which one of following is an example of ionic compound?

27 / 50

1-gram formula of NaCl contains grams________

28 / 50

Which one of the following pairs has the same mass?

29 / 50

Which one is polyatomic molecule?

30 / 50

80 percent elements are____________

31 / 50

40g of H3PO4 contains number of moles__________

32 / 50

The valency of Noble Gases is__________

33 / 50

Value of Avogadro number is________

34 / 50

Valency of carbon is___________

35 / 50

How many molecules of water will be present in half mole of water?

36 / 50

In which one of the following pairs has the same number of ions?

37 / 50

How many atoms are present in one-gram atomic mass of a substance?

38 / 50

Structure of atom is studied in which branch of chemistry?

39 / 50

Nuclear Chemistry has application in__________

40 / 50

Percentage of Argon in nature is____________

41 / 50

Elements may be_________

42 / 50

Mixture can be separated by method_________

43 / 50

How many atoms are present in one-gram atomic mass of a substance?

44 / 50

The ratio of carbon and oxygen in CO2 ________

45 / 50

The most abundant element occurring in the oceans is_______

46 / 50

How many number of moles are equivalent to 8 grams of CO2?

47 / 50

The third abundant gas found in the earth's crust is_______

48 / 50

Which one of the following can be separated by physical-means?

49 / 50

Which compound has same molecular and empirical formula?

50 / 50

Formation of which of the following is affected by light_________

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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, chemistry class 9 chapter 1.

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.

adamgee notes for class 10:

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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

 

 

 

Chemistry Notes for Class-9 Chapter-2

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Chemistry Notes for Class-9 Chapter-2

Structure of Atoms:

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Here are important MCQs for Chemistry Notes for Class 9, chapter 2

Try and Practice/ Play this MCQs Series again and again to get the grip on this MCQs Chapter-02 of Chemistry,9th Class, Structure of Atoms.

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Chemistry Ch#02, 9th Class

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1 / 41

How many electrons can be accommodated in N-shell?

2 / 41

Who discovered the proton?

3 / 41

13C and 14C are both present in nature_______

4 / 41

Who performed first experiment to split atom?

5 / 41

When U-235 breaks up, it produces_________

6 / 41

Rutherford used a gold foil in his experiment, which has a thickness of___________

7 / 41

Symbol for Deuterium is ________

8 / 41

Which radio isotope is used for the diagnosis of tumor in the body?

9 / 41

The name atom was derived from the Latin word “Atomos”, which meaning _________

10 / 41

Electronic configuration of Boron is______

11 / 41

The p subshell has_________

12 / 41

Which one of the following is the most penetrating?

13 / 41

Who described the concept of line spectrum in his atomic model?

14 / 41

According to Rutherford’s atomic theory atom should produce_________

15 / 41

Chadwick discovered neutrons in_____

16 / 41

In 1897, who found electrons in atom?

17 / 41

Who predicted in 1920 that some neutral particle having mass equal to that of proton in an atom?

18 / 41

The concept of orbit was used by____________

19 / 41

How many electrons can be accommodated in p-orbital?

20 / 41

Rutherford won noble prize in __________

21 / 41

Which of the following results in the discovery of proton?

22 / 41

The isotope C-12 is present in abundance of_____________

23 / 41

Neil Bohr won the noble prize in________

24 / 41

94Be + 42He ----> 126C+ ?

25 / 41

In 1912 Neil Bohr joined for post-doctoral research with _________

26 / 41

Neil Bohr presented his model in_______

27 / 41

John Dalton put forward his atomic theory in the beginning of________

28 / 41

Plum pudding theory was put forward by_________

29 / 41

Quantum means_________

30 / 41

The number of electrons that a shell can accommodate is given by formula.

31 / 41

How many times he mass of a proton is more than an electron?

32 / 41

How many sub shells are there in first energy level or k shell?

33 / 41

How many electrons can be accommodated in L-shell?

34 / 41

The value of Planck’s constant is_______

35 / 41

Which isotope is used for diagnosis of goiter?

36 / 41

94Be + 42He ----> 126C+ ?

37 / 41

Deuterium is used to make________

38 / 41

The percentage of pure 238/92U is found in nature_______

39 / 41

Canal Rays were discovered by_________

40 / 41

Which one of the following consists of three subshells?

41 / 41

Sir William Crooks performed experiments in a discharge tube at low pressure in_________

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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

If any student searching to topics like Chemistry Notes for 9th class,  Chemistry Notes for Class 9 pdf, Chemistry Notes for Class 9 MCQs, Chemistry Notes for class 9 Gujranwala board, Chemistry Notes for class 9 Lahore board, Class 9 Chemistry notes chapter 2, Chemistry class 9 chapter 2 pdf, Chemistry class 9 chapter-2 short questions, kips notes of chemistry for 9 class, 9th class chemistry solved exercises chapter 2, chemistry class 9 chapter 2 structure of atom, 9th class chemistry notes in English pdf download, 9th class chemistry solved exercises chapter 2 pdf, 9th class chemistry solved exercises chapter 2,  9th class chemistry notes in Urdu pdf download, Chemistry class 9 chapter-2 solved exercise pdf, Chemistry Notes for Class 9 Chapter-2, 9th class chemistry notes in Urdu pdf download, Chemistry class 9 pdf, adamjee notes class 9 Chemistry 2022, adamjee notes for class 9 Chemistry, adamjee notes for class 9, adamjee notes, chemistry class 9, Chemistry Class 9 chapter 2, then all the solution if your problem is available within our website eStudent.pk

Chemistry class 9

Chemistry class 9 chapter 2, Chemistry class 9 pdf, Chemistry class 9 past papers, 

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

 

 

 

9th Class Computer Notes Chapter-01

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PROBLEM SOLVING:

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9th Class Computer Notes Chapter-01:

MCQs from Text Book Exercise and others included in this Practice panel. By practicing again and again, Student can get good practice on this topic “Problem Solving” i.e. 9th Class Computer Science MCQs Chapter-01.

 

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Computer Ch#01, 09th Class

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1 / 53

The Solution is verified means; it is _______________

2 / 53

best statement for a problem: _______________

3 / 53

__________ keyword is use in algorithm to show the termination point of the algorithm.

4 / 53

The word algorithm comes from the name of Arabic researcher / writer ______________

5 / 53

During draw a flowchart, _________ is used to display / print the result on some output device.

6 / 53

In flowchart, ____________ used as conditional operation that determine which one of the two paths to take.

7 / 53

In flowchart, taking data from users is called ______________

8 / 53

In flowchart, ________ represent Operations to Process and change values.

9 / 53

A clear understanding of a problem ____________

10 / 53

The ______________ step is used to performing calculation & storing the result of calculation.

11 / 53

Invalid test Data is type of test data that _____________

12 / 53

Which is not an Importance & Benefits of a flowchart?

13 / 53

Which One is not used in flowchart?

14 / 53

____________ means to test whether the solution is correct or not.

15 / 53

If an algorithm is failed during verification, then it is important to ________________

16 / 53

_________ keyword /Notation is used in algorithm to display value.

17 / 53

It is important to _______________ before jumping into the solution of a problem.

18 / 53

In flowchart, ___________ indicate start and end of a flowchart.

19 / 53

____________ is type of test data, which complies with the input requirement of the algorithm.

20 / 53

____________means to test if the solution, is actually solving the same problem for it was designed.

21 / 53

In algorithm__________ notation is used to get input from the user.

22 / 53

“Planning a solution” includes following sub steps______________

23 / 53

Trace Table is a technique used to test algorithm as ____________________

24 / 53

In Algorithm ___________ keywords are used for check the condition.

25 / 53

Usually a computer programmer can use these steps _________

26 / 53

An algorithm is considered more efficient if it takes _____________ to reach the result

27 / 53

Logical Error means the solution is ________________

28 / 53

In flowchart to determine whether a statement is true or false and taking a appropriate step, we use ___________

29 / 53

______________ is essential to point out the defects and errors in solution of some problem.

30 / 53

________ keywords are used in algorithm, to transfer control to any other step in an algorithm.

31 / 53

In flowchart, we use symbols which are connected with the help of “Arrows” to show ______________

32 / 53

If an algorithm is used less space than it may be _____________

33 / 53

A set of Steps to Solve a problem is called____________

34 / 53

During solving a problem, if the problem is not well defined then we can use the strategy, ____________

35 / 53

In flowchart, ___________ is used to connect parts of a flow chart on different pages.

36 / 53

Testing an algorithm using invalid data ensure that _______________

37 / 53

Which is not an advantage of flowchart?

38 / 53

Efficiency of algorithm can be measured by _____________

39 / 53

Trace table is in form of _________________

40 / 53

Graphical presentation of the steps to solve a problem is called ____________

41 / 53

5-Ws (What, Who, When, Where & Why) are used to __________________

42 / 53

__________________is one of the key activates to improve quality of a solution.

43 / 53

______________ is a graphical representation of the process but ____________ write these steps in human understandable language.

44 / 53

After solving a problem, we need ____________whether it is correct or not, we use Test data.

45 / 53

A well-defined problem is one that _____________

46 / 53

In problem solving steps after analyzing a problem, which step we have to start?

47 / 53

Designer/ Programmer have option to take these steps____________

48 / 53

In flowchart, ____________ is used to display information which is exhibits the processed result.

49 / 53

There can be _________ algorithm to solve a single problem.

50 / 53

In algorithm _________ Notation is used for starting point of an algorithm.

51 / 53

Which type of data can be used to test the problem?

52 / 53

Which is the disadvantage of algorithm?

53 / 53

In flowchart, _______ keyword is used to keep counting the number of input given by user or processing.

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MCQS Chap # 01 – Computer Science 9th Class (Open/ Download)

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Short Questions Chap#01 – Computer Science 9th Class  (Open/ Download)

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Long Questions Chap #01 – Computer Science 9th Class (Open/ Download)

 

We know, the importance of Computer science  study in every class is most important for students, including for students of 9th Class & 10th Class or other classes. If we talk Matric Classes Student of Science Classes or Arts classes, Computer Science is equally important for both Classes. Every Student of 9th & 10th Class is trying to search the topic like “9th Class Computer Notes pdf”, 10th Class Computer Science Notes PDF”, 9th Class Computer MCQs Chapter-01, 9th Class Computer Notes Chapter-01 New Syllabus, Class 9 Computer MCQs Chapter-01 New Syllabus, 9th Class Computer MCQs Chapter-01, adamjee notes class 9 Computer 2022, adamjee notes for class 9 Computer, adamjee notes for class 9, adamjee notes.

Class 9 Computer Science Chapter-Wise Notes

 

 

9th Class Computer Notes Chapter-02

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Binary System:

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9th Class Computer Notes Chapter-02:

MCQs from Text Book Exercise and others included in this Practice panel. By practicing again and again, Student can get good practice on this topic “Binary System” i.e. 9th Class Computer Science MCQs Chapter-02. Best of Luck.

 

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Computer Ch#02, 09th Class

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1 / 70

A number system is the system of representation of ____________

2 / 70

In Boolean algebra, if we use OR Operator, the compound composition is true if ______________

3 / 70

A Truth Table is used to check the truth value of a proposition when ___________ are used.

4 / 70

This Expression “A + B  =  B + A” is the example of __________

5 / 70

ASCII stands for ________________

6 / 70

We get a _____________when some logical operator is applied to the Boolean proposition.

7 / 70

Data to a processor is provided through______________

11 characters left

8 / 70

_____________ is any physical device which used for storing data.

9 / 70

Which Unit size of memory is biggest in computer memory?

10 / 70

_____________ may also be written as “P + Q”

11 / 70

During conversion Binary to Hexadecimal, we make the group from ___________

12 / 70

Permanent memory is also called __________

13 / 70

To convert_____________, simply convert each hexadecimal digit to four binary values

14 / 70

The number system which has base 16 and it use 16-digits (0to 9, A, B, C, D, E, F) is called _______

15 / 70

This Expression “A + 0 = A”  is the example of __________

16 / 70

Hexadecimal system has total _____ numbers.

17 / 70

___________ is used to assemble more than one proposition into one proposition.

18 / 70

If “9” is in Hexadecimal, then its binary value is ____________

19 / 70

The number system which has base 10, also it uses ten digits (0-9) is called________

20 / 70

A device which can hold data even if it is not connected to any power source, is called __________

21 / 70

To assemble more than one operation and make a single proposition, we use _________

22 / 70

External Devises are just plug and play, it means________

23 / 70

“BO93A5” is an example of ______________

24 / 70

To Convert ______________________, divide the number by 16 and take Quotient and Remainder.

25 / 70

The order of application of two separate terms is not important in _____________

26 / 70

“1001001” is an example of _____________

27 / 70

“236598” is an example of _____________

28 / 70

In computer memory, At least one piece of information take place _____________

29 / 70

According to Boolean algebra, ___________ is a sentence that can either be true or false.

30 / 70

This Expression “( A + B ) + C = A  + ( B + C )” is the example of __________

31 / 70

Group of Eight bits is enough space to store single ASCII character, which is called _______

32 / 70

ASCII Codes are represented in Computer Memory after __________

33 / 70

Which Unit size of memory is smallest in computer memory?

34 / 70

In Non-Volatile memory, if we turn of power, the data stored in devices __________

35 / 70

At least _________ byte(s) is required to store any piece of information in a computer’s memory.

36 / 70

Which Unit size of memory is smallest in computer memory?

37 / 70

Number “17” is equal to ___________ in binary system.

38 / 70

To Convert ________________________, we divide the number by 2 and take Quotient and Remainder.

39 / 70

This Expression “A + ( B . C ) = ( A + B ) ( A + C )”  is the example of __________

40 / 70

During conversion Binary to Hexadecimal, if the left group has been less then 4-digits then, we simply ______________

41 / 70

__________ may also be written as “P . Q”

42 / 70

Commonly used number systems are ______________

43 / 70

If “F” is in Hexadecimal, then its binary value is ____________

44 / 70

According to _________ law there is no change in result if priority of expressions is changed.

45 / 70

If “E” is in Hexadecimal, then its binary value is ____________

46 / 70

The logical operator___________ is not a connector but it is used to negate a proposition.

47 / 70

If “C” is in Hexadecimal, then its binary value is ____________

48 / 70

______________help us to simplify complex Boolean Expression.

49 / 70

The smallest unit of data, can hold only one value 0 or 1 called __________

50 / 70

The main types of Computer Memory is/ are ______________

51 / 70

This is not a characteristic of Secondary storage devices_____________

52 / 70

“It is Cold outside” is a ____________

53 / 70

___________ are assigned on the bases of Truthfulness or falsity of a proposition.

54 / 70

Compound proposition is true only if ________________

55 / 70

The number system which has base 2 and it uses only 2-digits (0, 1) is called _______

56 / 70

A device which holds data as long as, it has power supply connected to it, is called _______

57 / 70

Best example of _____________ is Random Access Memory (RAM)

58 / 70

All Digital devices / Computers store data in _____________

59 / 70

In primary and secondary storages, data is stored in the form of _________

60 / 70

All the characters on keyboard have an associated code which is called ___________

61 / 70

___________ may also be written as  ﬧP

62 / 70

1-Petabyte is equal to ______________

  • (1024)4 bytes
  • (1024)6 bytes
  • (1024)5 bytes
  • (1024)7 bytes

Select Correct Option

63 / 70

Any computer hardware that is used for storing, porting and extracting data is called __________

64 / 70

Every proposition takes one out of two values _________, which is called truth values

65 / 70

Temporary Memory is also called __________

66 / 70

Expression (A + B ) . (A+C) is equal to ____________

67 / 70

  1. A Truth Table is used to check a proposition, weather it is _____________

68 / 70

Typical Example of _______________ is Hard drive, Memory Card, Flash Drive.

69 / 70

Hardware used for Storage devices may be _____________

70 / 70

Which is/ are the characteristic of volatile memory devices?

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Long Question Answers Chap # 02 – Computer Science 9th Class (Open/ Download)

 

9th Class Computer Science Notes & MCQS:

We know, the importance of Computer science  study in every class is most important for students, including for students of 9th Class & 10th Class or other classes. If we talk Matric Classes Student of Science Classes or Arts classes, Computer Science is equally important for both Classes. Every Student of 9th & 10th Class is trying to search the topic like 9th Class Computer Notes pdf, 10th Class Computer Science Notes PDF, 9th Class Computer MCQs Chapter-02, 9th Class Computer Notes Chapter-02, Class 9 Computer MCQs Chapter-02, 9th class Computer Notes Chapter 02, adamjee notes class 9 Computer 2022, adamjee notes for class 9 Computer, adamjee notes for class 9, adamjee notes.

Class 9 Computer Science Chapter-Wise Notes