chemistry class 9 chapter 4 structure of Molecule

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.

Here are important MCQs for Chemistry Notes for Class 9, chapter 4

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Chemistry Ch#04, 9th Class

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1 / 89

Ionic compounds have________

2 / 89

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

3 / 89

A covalent bond formed by two similar atoms is known as________

4 / 89

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

5 / 89

The boiling point of alcohol is ____________

6 / 89

Which molecule contains a single covalent bond?

7 / 89

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

8 / 89

Hydrogen and helium follow ________

9 / 89

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

10 / 89

Identify the compound which is not soluble in water__________

11 / 89

Atoms react with each other because_________

12 / 89

Epoxy adhesives are also known as_________

13 / 89

Which sign indicates partial positive and partial negative charge?

14 / 89

Epoxy adhesives can be made________

15 / 89

Metals have the tendency to lose electrons due to ________

16 / 89

The nature of a chemical bond can be predicted by using__________

17 / 89

Which type of bond is present between NH3 and BF3?

18 / 89

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

19 / 89

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

20 / 89

Which of the following do not show ions in water?

21 / 89

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

22 / 89

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

23 / 89

Covalent bond is most commonly found between the elements of group_________

24 / 89

Octet rule is __________

25 / 89

The electronic configuration of sodium atom is ____________

26 / 89

Non-polar compounds are insoluble in_________

27 / 89

Which type of attractive forces are present in ionic compounds?

28 / 89

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

29 / 89

The density of water at 0°C  is_________

30 / 89

Atom achieve stability by attaining electronic configuration of _________

31 / 89

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

32 / 89

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

33 / 89

The force of attractive between water molecules is__________

34 / 89

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

35 / 89

The electronegative elements have_________

36 / 89

Identify which pair has polar covalent bonds________

37 / 89

The position of an atom in the periodic table indicates its__________

38 / 89

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

39 / 89

The melting point of NaCl is___________

40 / 89

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

41 / 89

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

42 / 89

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

43 / 89

Hydrogen bonding is always found in____________

44 / 89

The difference between electronegativities of hydrogen and chlorine________

45 / 89

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

46 / 89

Metals usually have ______________

47 / 89

The compounds formed by oppositely charges are known as _________

48 / 89

Dative covalent bond is also known as________

49 / 89

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

50 / 89

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

51 / 89

Ice floats on water because____________

52 / 89

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

53 / 89

How many covalent bonds does C2H2 molecule have?

54 / 89

Mode of reaction depends upon its_________

55 / 89

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

56 / 89

All the noble gases have their valence electrons_________

57 / 89

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

58 / 89

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

59 / 89

Attaining two electrons in the valence shell is called__________

60 / 89

Noble gases are non-reactive because they do not__________

61 / 89

Which type of adhesives is less expensive to produce?

62 / 89

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

63 / 89

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

64 / 89

Which of the following is an example of covalent compound?

65 / 89

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

66 / 89

A molecule is formed, when energy of a system___________

67 / 89

The boiling point of NaCl is __________

68 / 89

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

69 / 89

Covalent bond involves the _______

70 / 89

The boiling point of water is ____________

71 / 89

The electropositive elements have tendency to _________

72 / 89

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

73 / 89

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

74 / 89

At room temperature, higher molecular mass covalent compounds are ________

75 / 89

The electro-negative value of fluorine is____________

76 / 89

During the formation of ionic bond, heat____________

77 / 89

Transfer of electrons between elements result in________

78 / 89

Triple covalent bond involves how many numbers of electrons?

79 / 89

Which of the following is the weakest bond amongst them?

80 / 89

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

81 / 89

Which of the following is a building block of matter?

82 / 89

Intermolecular forces are collectively known as__________

83 / 89

A bond pair in covalent molecules usually has_________

84 / 89

The density of ice at 0°C is __________

85 / 89

Which of the following is an electron deficient molecule?

86 / 89

Nitrogen molecule contain_________

87 / 89

Epoxy adhesives are________

88 / 89

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

89 / 89

A bond formed by the mutual sharing of an electron pair 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.

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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