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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

Empirical formula of glucose is______

2 / 50

Example of heterogeneous mixture is ___________

3 / 50

1-gram atom of carbon contains how many moles is_________

4 / 50

40g of H3PO4 contains number of moles__________

5 / 50

The mass of one molecule of water is________

6 / 50

A piece of matter in pure form is termed as _________

7 / 50

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

8 / 50

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

9 / 50

One amu (atomic mass unit) is equivalent to_______

10 / 50

Elements may be_________

11 / 50

Which one of following is an example of ionic compound?

12 / 50

Mixture can be separated by method_________

13 / 50

Which one is a physical property?

14 / 50

The most abundant element occurring in the oceans is_______

15 / 50

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

16 / 50

Empirical formula of acetic acid (CH3COOH) is _________

17 / 50

Formula mass of K2SO4 is___________

18 / 50

The ratio of carbon and oxygen in CO2 ________

19 / 50

The valency of Noble Gases is__________

20 / 50

Which one is polyatomic molecule?

21 / 50

Atom is electrically______

22 / 50

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

23 / 50

Industrial chemistry deals with the Manufacturing of compounds_________

24 / 50

Valency of oxygen is___________

25 / 50

Empirical formula of sand is________

26 / 50

Fourth state of matter is__________

27 / 50

The molar mass of H2S04 is__________

28 / 50

Nuclear Chemistry has application in__________

29 / 50

80 percent elements are____________

30 / 50

Example of covalent compound is _________

31 / 50

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

32 / 50

Which compound has same molecular and empirical formula?

33 / 50

Brass is a mixture of___________

34 / 50

Value of Avogadro number is________

35 / 50

Mass of 3 moles of oxygen atoms is ___________

36 / 50

Which type of molecular ions are present in plasma?

37 / 50

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

38 / 50

Which of the followings are tri-atomic molecule except?

39 / 50

Valency of carbon is___________

40 / 50

Percentage of Argon in nature is____________

41 / 50

Structure of atom is studied in which branch of chemistry?

42 / 50

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

43 / 50

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

44 / 50

1-gram formula of NaCl contains grams________

45 / 50

Example of mono atomic molecule is___________

46 / 50

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

47 / 50

Which one of the following pairs has the same mass?

48 / 50

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

49 / 50

Formation of which of the following is affected by light_________

50 / 50

Which one is extremely reactive species?

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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:

If you are looking for Chemistry Notes for Class 9 Chapter-2 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 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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Welcome

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1 / 41

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

2 / 41

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

3 / 41

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

4 / 41

Which one of the following consists of three subshells?

5 / 41

John Dalton put forward his atomic theory in the beginning of________

6 / 41

The isotope C-12 is present in abundance of_____________

7 / 41

Neil Bohr won the noble prize in________

8 / 41

Symbol for Deuterium is ________

9 / 41

13C and 14C are both present in nature_______

10 / 41

The value of Planck’s constant is_______

11 / 41

When U-235 breaks up, it produces_________

12 / 41

How many electrons can be accommodated in L-shell?

13 / 41

How many electrons can be accommodated in p-orbital?

14 / 41

In 1897, who found electrons in atom?

15 / 41

Canal Rays were discovered by_________

16 / 41

Plum pudding theory was put forward by_________

17 / 41

According to Rutherford’s atomic theory atom should produce_________

18 / 41

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

19 / 41

Who performed first experiment to split atom?

20 / 41

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

21 / 41

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

22 / 41

Who discovered the proton?

23 / 41

Which isotope is used for diagnosis of goiter?

24 / 41

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

25 / 41

Which one of the following is the most penetrating?

26 / 41

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

27 / 41

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

28 / 41

Which of the following results in the discovery of proton?

29 / 41

Chadwick discovered neutrons in_____

30 / 41

The concept of orbit was used by____________

31 / 41

How many electrons can be accommodated in N-shell?

32 / 41

Rutherford won noble prize in __________

33 / 41

Neil Bohr presented his model in_______

34 / 41

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

35 / 41

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

36 / 41

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

37 / 41

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

38 / 41

Quantum means_________

39 / 41

Deuterium is used to make________

40 / 41

Electronic configuration of Boron is______

41 / 41

The p subshell has_________

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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

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

2 / 53

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

3 / 53

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

4 / 53

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

5 / 53

A well-defined problem is one that _____________

6 / 53

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

7 / 53

A clear understanding of a problem ____________

8 / 53

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

9 / 53

Logical Error means the solution is ________________

10 / 53

Testing an algorithm using invalid data ensure that _______________

11 / 53

Usually a computer programmer can use these steps _________

12 / 53

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

13 / 53

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

14 / 53

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

15 / 53

Designer/ Programmer have option to take these steps____________

16 / 53

There can be _________ algorithm to solve a single problem.

17 / 53

“Planning a solution” includes following sub steps______________

18 / 53

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

19 / 53

Invalid test Data is type of test data that _____________

20 / 53

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

21 / 53

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

22 / 53

Which One is not used in flowchart?

23 / 53

Which is the disadvantage of algorithm?

24 / 53

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

25 / 53

Which is not an Importance & Benefits of a flowchart?

26 / 53

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

27 / 53

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

28 / 53

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

29 / 53

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

30 / 53

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

31 / 53

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

32 / 53

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

33 / 53

best statement for a problem: _______________

34 / 53

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

35 / 53

Which is not an advantage of flowchart?

36 / 53

A set of Steps to Solve a problem is called____________

37 / 53

Trace Table is a technique used to test algorithm as ____________________

38 / 53

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

39 / 53

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

40 / 53

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

41 / 53

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

42 / 53

Trace table is in form of _________________

43 / 53

In Algorithm ___________ keywords are used for check the condition.

44 / 53

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

45 / 53

The Solution is verified means; it is _______________

46 / 53

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

47 / 53

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

48 / 53

Efficiency of algorithm can be measured by _____________

49 / 53

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

50 / 53

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

51 / 53

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

52 / 53

In flowchart, taking data from users is called ______________

53 / 53

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

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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

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

2 / 70

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

3 / 70

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

4 / 70

Which is/ are the characteristic of volatile memory devices?

5 / 70

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

6 / 70

This is not a characteristic of Secondary storage devices_____________

7 / 70

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

8 / 70

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

9 / 70

Which Unit size of memory is smallest in computer memory?

10 / 70

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

11 / 70

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

12 / 70

Hexadecimal system has total _____ numbers.

13 / 70

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

14 / 70

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

15 / 70

Which Unit size of memory is smallest in computer memory?

16 / 70

Which Unit size of memory is biggest in computer memory?

17 / 70

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

18 / 70

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

19 / 70

“1001001” is an example of _____________

20 / 70

All Digital devices / Computers store data in _____________

21 / 70

ASCII stands for ________________

22 / 70

______________help us to simplify complex Boolean Expression.

23 / 70

Compound proposition is true only if ________________

24 / 70

The main types of Computer Memory is/ are ______________

25 / 70

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

26 / 70

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

27 / 70

1-Petabyte is equal to ______________

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

Select Correct Option

28 / 70

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

29 / 70

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

30 / 70

“It is Cold outside” is a ____________

31 / 70

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

32 / 70

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

33 / 70

_____________ is any physical device which used for storing data.

34 / 70

“236598” is an example of _____________

35 / 70

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

36 / 70

Data to a processor is provided through______________

11 characters left

37 / 70

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

38 / 70

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

39 / 70

External Devises are just plug and play, it means________

40 / 70

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

41 / 70

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

42 / 70

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

43 / 70

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

44 / 70

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

45 / 70

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

46 / 70

_____________ may also be written as “P + Q”

47 / 70

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

48 / 70

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

49 / 70

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

50 / 70

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

51 / 70

__________ may also be written as “P . Q”

52 / 70

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

53 / 70

ASCII Codes are represented in Computer Memory after __________

54 / 70

Commonly used number systems are ______________

55 / 70

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

56 / 70

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

57 / 70

“BO93A5” is an example of ______________

58 / 70

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

59 / 70

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

60 / 70

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

61 / 70

Permanent memory is also called __________

62 / 70

___________ may also be written as  ﬧP

63 / 70

Temporary Memory is also called __________

64 / 70

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

65 / 70

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

66 / 70

A number system is the system of representation of ____________

67 / 70

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

68 / 70

Best example of _____________ is Random Access Memory (RAM)

69 / 70

Hardware used for Storage devices may be _____________

70 / 70

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

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MCQs Chap # 02 – Computer Science 9th Class (Open/ Download)

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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