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

At room temperature, higher molecular mass covalent compounds are ________

2 / 89

Hydrogen bonding is always found in____________

3 / 89

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

4 / 89

Octet rule is __________

5 / 89

Non-polar compounds are insoluble in_________

6 / 89

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

7 / 89

Ionic compounds have________

8 / 89

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

9 / 89

The melting point of NaCl is___________

10 / 89

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

11 / 89

The boiling point of water is ____________

12 / 89

Dative covalent bond is also known as________

13 / 89

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

14 / 89

The difference between electronegativities of hydrogen and chlorine________

15 / 89

Nitrogen molecule contain_________

16 / 89

The boiling point of alcohol is ____________

17 / 89

Atoms react with each other because_________

18 / 89

Triple covalent bond involves how many numbers of electrons?

19 / 89

Atom achieve stability by attaining electronic configuration of _________

20 / 89

Epoxy adhesives are________

21 / 89

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

22 / 89

Epoxy adhesives can be made________

23 / 89

The electropositive elements have tendency to _________

24 / 89

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

25 / 89

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

26 / 89

Epoxy adhesives are also known as_________

27 / 89

The force of attractive between water molecules is__________

28 / 89

Which of the following is a building block of matter?

29 / 89

The electro-negative value of fluorine is____________

30 / 89

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

31 / 89

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

32 / 89

The nature of a chemical bond can be predicted by using__________

33 / 89

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

34 / 89

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

35 / 89

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

36 / 89

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

37 / 89

All the noble gases have their valence electrons_________

38 / 89

Which molecule contains a single covalent bond?

39 / 89

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

40 / 89

A bond pair in covalent molecules usually has_________

41 / 89

The density of water at 0°C  is_________

42 / 89

The compounds formed by oppositely charges are known as _________

43 / 89

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

44 / 89

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

45 / 89

Which of the following do not show ions in water?

46 / 89

The position of an atom in the periodic table indicates its__________

47 / 89

The density of ice at 0°C is __________

48 / 89

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

49 / 89

Which sign indicates partial positive and partial negative charge?

50 / 89

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

51 / 89

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

52 / 89

During the formation of ionic bond, heat____________

53 / 89

Mode of reaction depends upon its_________

54 / 89

Ice floats on water because____________

55 / 89

The electronegative elements have_________

56 / 89

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

57 / 89

Which of the following is an example of covalent compound?

58 / 89

Which type of adhesives is less expensive to produce?

59 / 89

Metals have the tendency to lose electrons due to ________

60 / 89

Hydrogen and helium follow ________

61 / 89

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

62 / 89

Metals usually have ______________

63 / 89

How many covalent bonds does C2H2 molecule have?

64 / 89

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

65 / 89

A molecule is formed, when energy of a system___________

66 / 89

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

67 / 89

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

68 / 89

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

69 / 89

Covalent bond is most commonly found between the elements of group_________

70 / 89

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

71 / 89

Noble gases are non-reactive because they do not__________

72 / 89

Which of the following is an electron deficient molecule?

73 / 89

Intermolecular forces are collectively known as__________

74 / 89

Which of the following is the weakest bond amongst them?

75 / 89

The electronic configuration of sodium atom is ____________

76 / 89

Attaining two electrons in the valence shell is called__________

77 / 89

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

78 / 89

Which type of attractive forces are present in ionic compounds?

79 / 89

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

80 / 89

Which type of bond is present between NH3 and BF3?

81 / 89

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

82 / 89

Covalent bond involves the _______

83 / 89

Identify which pair has polar covalent bonds________

84 / 89

Transfer of electrons between elements result in________

85 / 89

The boiling point of NaCl is __________

86 / 89

A covalent bond formed by two similar atoms is known as________

87 / 89

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

88 / 89

Identify the compound which is not soluble in water__________

89 / 89

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

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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