9th class chemistry solved exercises chapter 4 pdf

Chemistry Notes for Class-9 Chapter-4

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Chemistry Notes for Class-9 Chapter-4

Structure of Molecule 

If you are looking for Chemistry Notes for Class 9 Chapter-4, 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. Chemistry Notes for Class-9 Chapter-4.

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Chemistry Ch#04, 9th Class

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1 / 89

Atom achieve stability by attaining electronic configuration of _________

2 / 89

A covalent bond formed by two similar atoms is known as________

3 / 89

Mode of reaction depends upon its_________

4 / 89

An atom having six electrons in its valence shell will achieve noble gas electronic configuration by_____________

5 / 89

Epoxy adhesives are________

6 / 89

Metals have the tendency to lose electrons due to ________

7 / 89

Identify which pair has polar covalent bonds________

8 / 89

Covalent bond involves the _______

9 / 89

The melting point of NaCl is___________

10 / 89

A covalent bond formed by the mutual sharing of two pairs of electrons between bonded atom is called__________

11 / 89

A bond pair in covalent molecules usually has_________

12 / 89

Non-polar compounds are insoluble in_________

13 / 89

During the formation of ionic bond, heat____________

14 / 89

Which type of attractive forces are present in ionic compounds?

15 / 89

Which group of the periodic table have the tendency to gain electrons _______

16 / 89

The boiling point of alcohol is ____________

17 / 89

The nature of a chemical bond can be predicted by using__________

18 / 89

The electro-negativity value of atoms is given by which scale?

19 / 89

Which of the following is an example of polar covalent compound?

20 / 89

Which of the following is an example of covalent compound?

21 / 89

The forces responsible for binding the atoms together in a molecule are called_______

22 / 89

How many valence shell electrons are there in group-01 elements?

23 / 89

When an electro-negative element combines with electro-positive element the type of bonding is_______

24 / 89

Hydrogen and helium follow ________

25 / 89

Nitrogen molecule contain_________

26 / 89

Intermolecular forces are collectively known as__________

27 / 89

The energy required to break the intermolecular forces between one mole of liquid hydrogen chloride molecule to convert it into gas is___________

28 / 89

A bond formed between two non-metals is expected to be_________

29 / 89

The difference between electronegativities of hydrogen and chlorine________

30 / 89

The density of water at 0°C  is_________

31 / 89

The density of ice at 0°C is __________

32 / 89

The electrons that pair up to form a chemical bond are called__________

33 / 89

The force of attractive between water molecules is__________

34 / 89

Covalent bond is most commonly found between the elements of group_________

35 / 89

The electronegative elements have_________

36 / 89

Epoxy adhesives are also known as_________

37 / 89

A bond formed by the mutual sharing of an electron pair is called________

38 / 89

Metals usually have ______________

39 / 89

Noble gases are non-reactive because they do not__________

40 / 89

If the difference of electro-negativities between two elements is more than 1.7, the bond will be__________

41 / 89

The boiling point of water is ____________

42 / 89

If the difference of electronegativities between two elements is less than 1.7, the bond will be______

43 / 89

A molecule is formed, when energy of a system___________

44 / 89

Considering the electronic configuration of atoms which atom with the given atomic number will be the most stable one?

45 / 89

Which sign indicates partial positive and partial negative charge?

46 / 89

Every atom has a natural tendency to achieve electrons in its valence shell________

47 / 89

Which pair of the molecules has same type of covalent bonds?

48 / 89

The electronic configuration of sodium atom is ____________

49 / 89

Which type of adhesives is less expensive to produce?

50 / 89

Identify the compound which is not soluble in water__________

51 / 89

Which of the following is the weakest bond amongst them?

52 / 89

Which of the following is an electron deficient molecule?

53 / 89

All the noble gases have their valence electrons_________

54 / 89

A bond formed due to complete transfer of electrons from one atom to another is called_____

55 / 89

At room temperature, higher molecular mass covalent compounds are ________

56 / 89

Which force becomes operative, when two atoms come closer to each other?

57 / 89

Ionic compounds have________

58 / 89

The valence electrons, which are involved in chemical bonding, are termed as_________

59 / 89

The compounds formed by oppositely charges are known as _________

60 / 89

Hydrogen bonding is always found in____________

61 / 89

The mobile electrons are responsible for holding the atoms of metals together, forming a ____

62 / 89

Octet rule is __________

63 / 89

How many lone pairs are present on nitrogen in ammonia molecule?

64 / 89

Which type of bond is present between NH3 and BF3?

65 / 89

Which of the following do not show ions in water?

66 / 89

The boiling point of NaCl is __________

67 / 89

Transfer of electrons between elements result in________

68 / 89

Water has high boiling points as compared to alcohol due to _______

69 / 89

The formation of a chemical bond is a result of dominant net______

70 / 89

The electropositive elements have tendency to _________

71 / 89

Atoms react with each other because_________

72 / 89

How many valency shell electrons are there in Na+ ion?

73 / 89

Which molecule contains a single covalent bond?

74 / 89

How many electrons are involved in the formation single covalent bond?

75 / 89

The electro-negative value of fluorine is____________

76 / 89

Which of the following is a building block of matter?

77 / 89

How many electrons are there in the valence shell of sodium atom?

78 / 89

Dative covalent bond is also known as________

79 / 89

How many covalent bonds does C2H2 molecule have?

80 / 89

Ice floats on water because____________

81 / 89

Metals are good conductors of heat and electricity in solid and liquid state due to________

82 / 89

Epoxy adhesives can be made________

83 / 89

Triple covalent bond involves how many numbers of electrons?

84 / 89

The formation of ionic bond between two ions is due to ________

85 / 89

The position of an atom in the periodic table indicates its__________

86 / 89

Malleability is the property by virtue of which a metal can be drawn into________

87 / 89

In metals, the hold of nucleus over the valence shell electrons is weak due to _______

88 / 89

Which of the following is the weakest force among the atoms?

89 / 89

Attaining two electrons in the valence shell is called__________

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Chemistry Notes, Problems for Class 9th

Chemistry, a new subject for 9th Class, having a lot of concepts all 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 Notes for Class-9 Chapter-4.

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, we need chemists. Chemistry Notes for Class-9 Chapter-4.

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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