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

Noble gases are non-reactive because they do not__________

2 / 89

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

3 / 89

Which type of bond is present between NH3 and BF3?

4 / 89

Attaining two electrons in the valence shell is called__________

5 / 89

Non-polar compounds are insoluble in_________

6 / 89

Identify which pair has polar covalent bonds________

7 / 89

The electro-negative value of fluorine is____________

8 / 89

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

9 / 89

Metals usually have ______________

10 / 89

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

11 / 89

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

12 / 89

The difference between electronegativities of hydrogen and chlorine________

13 / 89

Epoxy adhesives are________

14 / 89

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

15 / 89

During the formation of ionic bond, heat____________

16 / 89

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

17 / 89

Hydrogen and helium follow ________

18 / 89

Epoxy adhesives can be made________

19 / 89

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

20 / 89

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

21 / 89

Transfer of electrons between elements result in________

22 / 89

Metals have the tendency to lose electrons due to ________

23 / 89

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

24 / 89

The electronegative elements have_________

25 / 89

Which of the following is an example of covalent compound?

26 / 89

Covalent bond is most commonly found between the elements of group_________

27 / 89

Which of the following is a building block of matter?

28 / 89

Octet rule is __________

29 / 89

Intermolecular forces are collectively known as__________

30 / 89

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

31 / 89

How many covalent bonds does C2H2 molecule have?

32 / 89

The electropositive elements have tendency to _________

33 / 89

The electronic configuration of sodium atom is ____________

34 / 89

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

35 / 89

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

36 / 89

The density of water at 0°C  is_________

37 / 89

A covalent bond formed by two similar atoms is known as________

38 / 89

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

39 / 89

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

40 / 89

Which of the following is the weakest bond amongst them?

41 / 89

Epoxy adhesives are also known as_________

42 / 89

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

43 / 89

Which molecule contains a single covalent bond?

44 / 89

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

45 / 89

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

46 / 89

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

47 / 89

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

48 / 89

The boiling point of alcohol is ____________

49 / 89

Atom achieve stability by attaining electronic configuration of _________

50 / 89

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

51 / 89

Nitrogen molecule contain_________

52 / 89

Atoms react with each other because_________

53 / 89

A bond pair in covalent molecules usually has_________

54 / 89

The compounds formed by oppositely charges are known as _________

55 / 89

Ionic compounds have________

56 / 89

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

57 / 89

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

58 / 89

A molecule is formed, when energy of a system___________

59 / 89

Mode of reaction depends upon its_________

60 / 89

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

61 / 89

Which sign indicates partial positive and partial negative charge?

62 / 89

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

63 / 89

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

64 / 89

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

65 / 89

Ice floats on water because____________

66 / 89

Which type of adhesives is less expensive to produce?

67 / 89

Hydrogen bonding is always found in____________

68 / 89

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

69 / 89

At room temperature, higher molecular mass covalent compounds are ________

70 / 89

Identify the compound which is not soluble in water__________

71 / 89

The melting point of NaCl is___________

72 / 89

Which of the following do not show ions in water?

73 / 89

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

74 / 89

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

75 / 89

The nature of a chemical bond can be predicted by using__________

76 / 89

All the noble gases have their valence electrons_________

77 / 89

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

78 / 89

Triple covalent bond involves how many numbers of electrons?

79 / 89

The density of ice at 0°C is __________

80 / 89

Which of the following is an electron deficient molecule?

81 / 89

Which type of attractive forces are present in ionic compounds?

82 / 89

The force of attractive between water molecules is__________

83 / 89

Dative covalent bond is also known as________

84 / 89

The position of an atom in the periodic table indicates its__________

85 / 89

The boiling point of water is ____________

86 / 89

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

87 / 89

The boiling point of NaCl is __________

88 / 89

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

89 / 89

Covalent bond involves the _______

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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.

Chemistry class 9 pdf / 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

 

 

 

One comment

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