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CHSE Class 11 Chemistry Chapter 3 - Classification of Elements

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Question 1

Mendeleev's periodic law is based on:

A Number of neutrons B Specific heat C Atomic mass D Atomic number

Question 2

The Modern Periodic Law is based on:

A Isotopic mass B Atomic number C Mass number D Atomic mass

Question 3

Who formulated the Law of Octaves?

A Dobereiner B Lothar Meyer C Mendeleev D Newlands

Question 4

Dobereiner's triads grouped elements based on:

A Number of isotopes B Radioactivity C Atomic number D Similar chemical properties and atomic weight

Question 5

Which groups belong to the s-block of the periodic table?

A Groups 13 to 18 B Groups 1 and 2 only C Groups 3 to 12 D Groups 1 and 2

Question 6

Which groups belong to the p-block of the periodic table?

A Groups 1 and 2 only B Groups 3 to 12 C Groups 13 to 18 D Groups 13 to 18

Question 7

Which groups belong to the d-block of the periodic table?

A Groups 3 to 12 B Groups 13 to 18 C Groups 1 and 2 only D Groups 3 to 12

Question 8

Which groups belong to the f-block of the periodic table?

A Groups 13 to 18 B Groups 1 and 2 only C Groups 3 to 12 D Lanthanoids and Actinoids

Question 9

Across a period from left to right, the first ionization enthalpy generally:

A First decreases then increases B Decreases C Increases D Remains constant

Question 10

Down a group, the first ionization enthalpy generally:

A Decreases B First increases then decreases C Increases D Remains constant

Question 11

Across a period from left to right, the first ionization enthalpy generally:

A First decreases then increases B Remains constant C Decreases D Increases

Question 12

Down a group, the first ionization enthalpy generally:

A Decreases B Remains constant C First increases then decreases D Increases

Question 13

Across a period from left to right, the first ionization enthalpy generally:

A First decreases then increases B Increases C Remains constant D Decreases

Question 14

Down a group, the first ionization enthalpy generally:

A Increases B Decreases C First increases then decreases D Remains constant

Question 15

Across a period from left to right, the first ionization enthalpy generally:

A Remains constant B Increases C Decreases D First decreases then increases

Question 16

Down a group, the first ionization enthalpy generally:

A Decreases B Increases C First increases then decreases D Remains constant

Question 17

Across a period from left to right, the first ionization enthalpy generally:

A Remains constant B First decreases then increases C Increases D Decreases

Question 18

Down a group, the first ionization enthalpy generally:

A First increases then decreases B Remains constant C Increases D Decreases

Question 19

Across a period from left to right, the first ionization enthalpy generally:

A Remains constant B First decreases then increases C Decreases D Increases

Question 20

Down a group, the first ionization enthalpy generally:

A Decreases B First increases then decreases C Remains constant D Increases

Question 21

Across a period from left to right, the first ionization enthalpy generally:

A Decreases B Remains constant C First decreases then increases D Increases

Question 22

Down a group, the first ionization enthalpy generally:

A Remains constant B First increases then decreases C Decreases D Increases

Question 23

Across a period from left to right, the first ionization enthalpy generally:

A Increases B Decreases C Remains constant D First decreases then increases

Question 24

Down a group, the first ionization enthalpy generally:

A Increases B Decreases C First increases then decreases D Remains constant

Question 25

Across a period from left to right, the first ionization enthalpy generally:

A Remains constant B First decreases then increases C Decreases D Increases

Question 26

Down a group, the first ionization enthalpy generally:

A First increases then decreases B Remains constant C Decreases D Increases

Question 27

Across a period from left to right, the first ionization enthalpy generally:

A Increases B Remains constant C First decreases then increases D Decreases

Question 28

Down a group, the first ionization enthalpy generally:

A Increases B First increases then decreases C Remains constant D Decreases

Question 29

Across a period from left to right, the first ionization enthalpy generally:

A Remains constant B Decreases C First decreases then increases D Increases

Question 30

Down a group, the first ionization enthalpy generally:

A Increases B First increases then decreases C Remains constant D Decreases

Question 31

Across a period from left to right, the first ionization enthalpy generally:

A First decreases then increases B Decreases C Increases D Remains constant

Question 32

Down a group, the first ionization enthalpy generally:

A Decreases B First increases then decreases C Increases D Remains constant

Question 33

Across a period from left to right, the first ionization enthalpy generally:

A Decreases B Remains constant C Increases D First decreases then increases

Question 34

Down a group, the first ionization enthalpy generally:

A First increases then decreases B Remains constant C Decreases D Increases

Question 35

Across a period from left to right, the first ionization enthalpy generally:

A Decreases B Increases C First decreases then increases D Remains constant

Question 36

Down a group, the first ionization enthalpy generally:

A Remains constant B Increases C First increases then decreases D Decreases

Question 37

Across a period from left to right, the first ionization enthalpy generally:

A Increases B First decreases then increases C Decreases D Remains constant

Question 38

Down a group, the first ionization enthalpy generally:

A Remains constant B First increases then decreases C Decreases D Increases

Question 39

Across a period from left to right, the atomic radius:

A Increases B Decreases C Remains the same D First increases then decreases

Question 40

Down a group, the atomic radius generally:

A Cannot be predicted B Remains constant C Decreases D Increases

Question 41

Across a period from left to right, the atomic radius:

A First increases then decreases B Decreases C Remains the same D Increases

Question 42

Down a group, the atomic radius generally:

A Remains constant B Decreases C Increases D Cannot be predicted

Question 43

Across a period from left to right, the atomic radius:

A Remains the same B First increases then decreases C Increases D Decreases

Question 44

Down a group, the atomic radius generally:

A Increases B Remains constant C Decreases D Cannot be predicted

Question 45

Across a period from left to right, the atomic radius:

A Increases B First increases then decreases C Decreases D Remains the same

Question 46

Down a group, the atomic radius generally:

A Increases B Remains constant C Decreases D Cannot be predicted

Question 47

Across a period from left to right, the atomic radius:

A First increases then decreases B Increases C Remains the same D Decreases

Question 48

Down a group, the atomic radius generally:

A Remains constant B Decreases C Increases D Cannot be predicted

Question 49

Across a period from left to right, the atomic radius:

A First increases then decreases B Decreases C Increases D Remains the same

Question 50

Down a group, the atomic radius generally:

A Cannot be predicted B Decreases C Increases D Remains constant

Question 51

Across a period from left to right, the atomic radius:

A Increases B Decreases C First increases then decreases D Remains the same

Question 52

Down a group, the atomic radius generally:

A Decreases B Increases C Remains constant D Cannot be predicted

Question 53

Across a period from left to right, the atomic radius:

A Decreases B First increases then decreases C Remains the same D Increases

Question 54

Down a group, the atomic radius generally:

A Remains constant B Increases C Decreases D Cannot be predicted

Question 55

Across a period from left to right, the atomic radius:

A First increases then decreases B Decreases C Remains the same D Increases

Question 56

Down a group, the atomic radius generally:

A Cannot be predicted B Remains constant C Increases D Decreases

Question 57

Across a period from left to right, the atomic radius:

A Remains the same B Decreases C First increases then decreases D Increases

Question 58

Down a group, the atomic radius generally:

A Cannot be predicted B Remains constant C Decreases D Increases

Question 59

Across a period from left to right, the atomic radius:

A Increases B First increases then decreases C Decreases D Remains the same

Question 60

Down a group, the atomic radius generally:

A Decreases B Increases C Remains constant D Cannot be predicted

Question 61

Across a period from left to right, the atomic radius:

A First increases then decreases B Decreases C Remains the same D Increases

Question 62

Down a group, the atomic radius generally:

A Decreases B Increases C Remains constant D Cannot be predicted

Question 63

Across a period from left to right, the atomic radius:

A Remains the same B Decreases C Increases D First increases then decreases

Question 64

Down a group, the atomic radius generally:

A Increases B Remains constant C Decreases D Cannot be predicted

Question 65

Across a period from left to right, the atomic radius:

A Decreases B Remains the same C Increases D First increases then decreases

Question 66

Down a group, the atomic radius generally:

A Remains constant B Cannot be predicted C Decreases D Increases

Question 67

Across a period from left to right, the atomic radius:

A Decreases B First increases then decreases C Increases D Remains the same

Question 68

Down a group, the atomic radius generally:

A Decreases B Remains constant C Increases D Cannot be predicted

Question 69

Which element has the highest electronegativity in the periodic table?

A Oxygen B Nitrogen C Chlorine D Fluorine

Question 70

Which element has the most negative electron gain enthalpy?

A Fluorine B Oxygen C Chlorine D Sulfur

Question 71

Which element has the highest electronegativity in the periodic table?

A Fluorine B Oxygen C Chlorine D Nitrogen

Question 72

Which element has the most negative electron gain enthalpy?

A Fluorine B Chlorine C Oxygen D Sulfur

Question 73

Which element has the highest electronegativity in the periodic table?

A Nitrogen B Fluorine C Oxygen D Chlorine

Question 74

Which element has the most negative electron gain enthalpy?

A Oxygen B Fluorine C Chlorine D Sulfur

Question 75

Which element has the highest electronegativity in the periodic table?

A Chlorine B Nitrogen C Fluorine D Oxygen

Question 76

Which element has the most negative electron gain enthalpy?

A Fluorine B Oxygen C Sulfur D Chlorine

Question 77

Which element has the highest electronegativity in the periodic table?

A Nitrogen B Oxygen C Chlorine D Fluorine

Question 78

Which element has the most negative electron gain enthalpy?

A Chlorine B Sulfur C Fluorine D Oxygen

Question 79

Which element has the highest electronegativity in the periodic table?

A Chlorine B Nitrogen C Oxygen D Fluorine

Question 80

Which element has the most negative electron gain enthalpy?

A Fluorine B Sulfur C Oxygen D Chlorine

Question 81

Which element has the highest electronegativity in the periodic table?

A Fluorine B Nitrogen C Oxygen D Chlorine

Question 82

Which element has the most negative electron gain enthalpy?

A Sulfur B Chlorine C Oxygen D Fluorine

Question 83

Which element has the highest electronegativity in the periodic table?

A Oxygen B Nitrogen C Chlorine D Fluorine

Question 84

Which element has the most negative electron gain enthalpy?

A Oxygen B Chlorine C Sulfur D Fluorine

Question 85

Which element has the highest electronegativity in the periodic table?

A Nitrogen B Fluorine C Oxygen D Chlorine

Question 86

Which element has the most negative electron gain enthalpy?

A Oxygen B Chlorine C Fluorine D Sulfur

Question 87

Which element has the highest electronegativity in the periodic table?

A Nitrogen B Oxygen C Fluorine D Chlorine

Question 88

Which element has the most negative electron gain enthalpy?

A Fluorine B Oxygen C Chlorine D Sulfur

Question 89

Which element has the highest electronegativity in the periodic table?

A Fluorine B Nitrogen C Oxygen D Chlorine

Question 90

Which element has the most negative electron gain enthalpy?

A Sulfur B Fluorine C Chlorine D Oxygen

Question 91

Which element has the highest electronegativity in the periodic table?

A Chlorine B Oxygen C Fluorine D Nitrogen

Question 92

Which element has the most negative electron gain enthalpy?

A Fluorine B Sulfur C Chlorine D Oxygen

Question 93

Which element has the highest electronegativity in the periodic table?

A Oxygen B Fluorine C Nitrogen D Chlorine

Question 94

Which element has the most negative electron gain enthalpy?

A Sulfur B Chlorine C Oxygen D Fluorine

Question 95

Which element has the highest electronegativity in the periodic table?

A Chlorine B Fluorine C Oxygen D Nitrogen

Question 96

Which element has the most negative electron gain enthalpy?

A Sulfur B Chlorine C Oxygen D Fluorine

Question 97

Which element has the highest electronegativity in the periodic table?

A Fluorine B Oxygen C Chlorine D Nitrogen

Question 98

Which element has the most negative electron gain enthalpy?

A Chlorine B Oxygen C Fluorine D Sulfur

Question 99

Which element has the highest electronegativity in the periodic table?

A Oxygen B Fluorine C Chlorine D Nitrogen

Question 100

Which element has the most negative electron gain enthalpy?

A Oxygen B Fluorine C Sulfur D Chlorine

Free Secure MCQ Player

Mendeleev's periodic law is based on:

The Modern Periodic Law is based on:

Who formulated the Law of Octaves?

Dobereiner's triads grouped elements based on:

Which groups belong to the s-block of the periodic table?

Which groups belong to the p-block of the periodic table?

Which groups belong to the d-block of the periodic table?

Which groups belong to the f-block of the periodic table?

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the first ionization enthalpy generally:

Down a group, the first ionization enthalpy generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Across a period from left to right, the atomic radius:

Down a group, the atomic radius generally:

Which element has the highest electronegativity in the periodic table?

Which element has the most negative electron gain enthalpy?

Which element has the highest electronegativity in the periodic table?

Which element has the most negative electron gain enthalpy?

Which element has the highest electronegativity in the periodic table?

Which element has the most negative electron gain enthalpy?

Which element has the highest electronegativity in the periodic table?

Which element has the most negative electron gain enthalpy?

Which element has the highest electronegativity in the periodic table?

Which element has the most negative electron gain enthalpy?

Which element has the highest electronegativity in the periodic table?