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CHSE Class 11 Chemistry Chapter 2 - Structure of Atom

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Question 1

Who discovered the electron?

A Rutherford B Dalton C J.J. Thomson D Niels Bohr

Question 2

What is the mass of a electron?

A 9.1 x 10^-27 kg B 9.1 x 10^-31 kg C 1.6 x 10^-19 kg D 1.0 x 10^-31 kg

Question 3

An electron is _____ charged.

A negatively B positively C not D neutrally

Question 4

Who discovered the proton?

A Rutherford B E. Goldstein C Niels Bohr D Dalton

Question 5

What is the mass of a proton?

A 1.6 x 10^-19 kg B 9.1 x 10^-27 kg C 1.672 x 10^-27 kg D 1.0 x 10^-31 kg

Question 6

An proton is _____ charged.

A positively B negatively C not D positively

Question 7

Who discovered the neutron?

A James Chadwick B Niels Bohr C Rutherford D Dalton

Question 8

What is the mass of a neutron?

A 1.0 x 10^-31 kg B 9.1 x 10^-27 kg C 1.6 x 10^-19 kg D 1.675 x 10^-27 kg

Question 9

An neutron is _____ charged.

A neutrally B not C positively D negatively

Question 10

What is the maximum number of electrons in the principal quantum shell n = 1?

A 2 B 4 C 4 D 1

Question 11

What is the maximum number of electrons in the principal quantum shell n = 2?

A 10 B 4 C 16 D 8

Question 12

What is the maximum number of electrons in the principal quantum shell n = 3?

A 9 B 18 C 20 D 36

Question 13

What is the maximum number of electrons in the principal quantum shell n = 4?

A 34 B 64 C 32 D 16

Question 14

If the frequency of light is 6.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 1000.0 nm B 600.0 nm C 500.0 nm D 250.0 nm

Question 15

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 2000.0 nm B 1100.0 nm C 500.0 nm D 1000.0 nm

Question 16

If the frequency of light is 6.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 500.0 nm B 250.0 nm C 1000.0 nm D 600.0 nm

Question 17

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 1000.0 nm B 500.0 nm C 2000.0 nm D 1100.0 nm

Question 18

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 1100.0 nm B 2000.0 nm C 500.0 nm D 1000.0 nm

Question 19

If the frequency of light is 2.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 1500.0 nm B 3000.0 nm C 750.0 nm D 1600.0 nm

Question 20

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 500.0 nm B 2000.0 nm C 1000.0 nm D 1100.0 nm

Question 21

If the frequency of light is 4.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 850.0 nm B 750.0 nm C 375.0 nm D 1500.0 nm

Question 22

If the frequency of light is 4.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 750.0 nm B 375.0 nm C 1500.0 nm D 850.0 nm

Question 23

If the frequency of light is 6.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 250.0 nm B 600.0 nm C 1000.0 nm D 500.0 nm

Question 24

If the frequency of light is 6.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 600.0 nm B 250.0 nm C 1000.0 nm D 500.0 nm

Question 25

If the frequency of light is 2.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 750.0 nm B 1500.0 nm C 1600.0 nm D 3000.0 nm

Question 26

If the frequency of light is 2.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 3000.0 nm B 750.0 nm C 1600.0 nm D 1500.0 nm

Question 27

If the frequency of light is 4.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 375.0 nm B 850.0 nm C 1500.0 nm D 750.0 nm

Question 28

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

A 1100.0 nm B 500.0 nm C 1000.0 nm D 2000.0 nm

Question 29

What is the energy of a photon with frequency 5.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 33.13 x 10^-20 J B 16.57 x 10^-20 J C 66.26 x 10^-20 J D 331.3 x 10^-19 J

Question 30

What is the energy of a photon with frequency 5.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 33.13 x 10^-20 J B 331.3 x 10^-19 J C 66.26 x 10^-20 J D 16.57 x 10^-20 J

Question 31

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 13.25 x 10^-20 J B 265.0 x 10^-19 J C 26.5 x 10^-20 J D 53.0 x 10^-20 J

Question 32

What is the energy of a photon with frequency 3.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 9.94 x 10^-20 J B 39.76 x 10^-20 J C 198.8 x 10^-19 J D 19.88 x 10^-20 J

Question 33

What is the energy of a photon with frequency 2.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 26.5 x 10^-20 J B 132.5 x 10^-19 J C 13.25 x 10^-20 J D 6.62 x 10^-20 J

Question 34

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 265.0 x 10^-19 J B 26.5 x 10^-20 J C 53.0 x 10^-20 J D 13.25 x 10^-20 J

Question 35

What is the energy of a photon with frequency 3.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 39.76 x 10^-20 J B 198.8 x 10^-19 J C 19.88 x 10^-20 J D 9.94 x 10^-20 J

Question 36

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 26.5 x 10^-20 J B 13.25 x 10^-20 J C 53.0 x 10^-20 J D 265.0 x 10^-19 J

Question 37

What is the energy of a photon with frequency 5.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 33.13 x 10^-20 J B 16.57 x 10^-20 J C 66.26 x 10^-20 J D 331.3 x 10^-19 J

Question 38

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 265.0 x 10^-19 J B 13.25 x 10^-20 J C 53.0 x 10^-20 J D 26.5 x 10^-20 J

Question 39

What is the energy of a photon with frequency 2.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 13.25 x 10^-20 J B 26.5 x 10^-20 J C 132.5 x 10^-19 J D 6.62 x 10^-20 J

Question 40

What is the energy of a photon with frequency 5.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 66.26 x 10^-20 J B 331.3 x 10^-19 J C 33.13 x 10^-20 J D 16.57 x 10^-20 J

Question 41

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 265.0 x 10^-19 J B 26.5 x 10^-20 J C 13.25 x 10^-20 J D 53.0 x 10^-20 J

Question 42

What is the energy of a photon with frequency 3.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 9.94 x 10^-20 J B 198.8 x 10^-19 J C 39.76 x 10^-20 J D 19.88 x 10^-20 J

Question 43

What is the energy of a photon with frequency 2.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

A 6.62 x 10^-20 J B 26.5 x 10^-20 J C 13.25 x 10^-20 J D 132.5 x 10^-19 J

Question 44

An atom has 10 protons and 15 neutrons. What is its mass number?

A 27 B 25 C 10 D 15

Question 45

If an atom has a mass number of 25 and contains 15 neutrons, what is its atomic number?

A 25 B 15 C 8 D 10

Question 46

An atom has 7 protons and 8 neutrons. What is its mass number?

A 17 B 15 C 7 D 8

Question 47

If an atom has a mass number of 15 and contains 8 neutrons, what is its atomic number?

A 15 B 5 C 7 D 8

Question 48

An atom has 5 protons and 5 neutrons. What is its mass number?

A 12 B 10 C 5 D 5

Question 49

If an atom has a mass number of 10 and contains 5 neutrons, what is its atomic number?

A 3 B 10 C 5 D 5

Question 50

An atom has 13 protons and 15 neutrons. What is its mass number?

A 28 B 15 C 30 D 13

Question 51

If an atom has a mass number of 28 and contains 15 neutrons, what is its atomic number?

A 28 B 11 C 13 D 15

Question 52

An atom has 13 protons and 15 neutrons. What is its mass number?

A 15 B 13 C 28 D 30

Question 53

If an atom has a mass number of 28 and contains 15 neutrons, what is its atomic number?

A 11 B 15 C 13 D 28

Question 54

An atom has 21 protons and 25 neutrons. What is its mass number?

A 48 B 21 C 46 D 25

Question 55

If an atom has a mass number of 46 and contains 25 neutrons, what is its atomic number?

A 21 B 19 C 46 D 25

Question 56

An atom has 21 protons and 24 neutrons. What is its mass number?

A 47 B 24 C 45 D 21

Question 57

If an atom has a mass number of 45 and contains 24 neutrons, what is its atomic number?

A 21 B 45 C 24 D 19

Question 58

An atom has 13 protons and 17 neutrons. What is its mass number?

A 30 B 17 C 13 D 32

Question 59

If an atom has a mass number of 30 and contains 17 neutrons, what is its atomic number?

A 17 B 13 C 11 D 30

Question 60

An atom has 16 protons and 16 neutrons. What is its mass number?

A 32 B 34 C 16 D 16

Question 61

If an atom has a mass number of 32 and contains 16 neutrons, what is its atomic number?

A 32 B 16 C 14 D 16

Question 62

An atom has 5 protons and 7 neutrons. What is its mass number?

A 7 B 12 C 14 D 5

Question 63

If an atom has a mass number of 12 and contains 7 neutrons, what is its atomic number?

A 7 B 12 C 5 D 3

Question 64

An atom has 26 protons and 30 neutrons. What is its mass number?

A 58 B 26 C 56 D 30

Question 65

If an atom has a mass number of 56 and contains 30 neutrons, what is its atomic number?

A 30 B 24 C 56 D 26

Question 66

An atom has 28 protons and 30 neutrons. What is its mass number?

A 30 B 60 C 28 D 58

Question 67

If an atom has a mass number of 58 and contains 30 neutrons, what is its atomic number?

A 26 B 30 C 58 D 28

Question 68

An atom has 24 protons and 25 neutrons. What is its mass number?

A 49 B 51 C 25 D 24

Question 69

If an atom has a mass number of 49 and contains 25 neutrons, what is its atomic number?

A 22 B 24 C 49 D 25

Question 70

An atom has 13 protons and 15 neutrons. What is its mass number?

A 30 B 13 C 28 D 15

Question 71

If an atom has a mass number of 28 and contains 15 neutrons, what is its atomic number?

A 11 B 28 C 13 D 15

Question 72

An atom has 21 protons and 24 neutrons. What is its mass number?

A 21 B 47 C 24 D 45

Question 73

If an atom has a mass number of 45 and contains 24 neutrons, what is its atomic number?

A 24 B 21 C 45 D 19

Question 74

An atom has 23 protons and 27 neutrons. What is its mass number?

A 27 B 52 C 50 D 23

Question 75

If an atom has a mass number of 50 and contains 27 neutrons, what is its atomic number?

A 50 B 21 C 23 D 27

Question 76

An atom has 14 protons and 19 neutrons. What is its mass number?

A 35 B 19 C 14 D 33

Question 77

If an atom has a mass number of 33 and contains 19 neutrons, what is its atomic number?

A 14 B 33 C 19 D 12

Question 78

An atom has 8 protons and 13 neutrons. What is its mass number?

A 8 B 13 C 23 D 21

Question 79

If an atom has a mass number of 21 and contains 13 neutrons, what is its atomic number?

A 8 B 21 C 13 D 6

Question 80

An atom has 15 protons and 17 neutrons. What is its mass number?

A 17 B 15 C 32 D 34

Question 81

If an atom has a mass number of 32 and contains 17 neutrons, what is its atomic number?

A 15 B 32 C 17 D 13

Question 82

An atom has 21 protons and 23 neutrons. What is its mass number?

A 21 B 46 C 23 D 44

Question 83

If an atom has a mass number of 44 and contains 23 neutrons, what is its atomic number?

A 21 B 19 C 23 D 44

Question 84

The shape of a p-orbital is:

A Spherical B Dumbbell C Double dumbbell D Complex

Question 85

The shape of an s-orbital is:

A Dumbbell B Planar C Spherical D Double dumbbell

Question 86

Which principle states that no two electrons in an atom can have the same set of four quantum numbers?

A Pauli Exclusion Principle B Hund's Rule C Heisenberg Uncertainty Principle D Aufbau Principle

Question 87

Which rule states that pairing of electrons in orbitals of the same subshell does not occur until each orbital is singly occupied?

A Aufbau Principle B Pauli Exclusion Principle C Bohr's Postulate D Hund's Rule

Question 88

The region in space where the probability of finding an electron is maximum is called:

A Orbit B Orbital C Shell D Nucleus

Question 89

Dual nature of matter was proposed by:

A Heisenberg B Einstein C de Broglie D Planck

Question 90

Heisenberg's Uncertainty Principle is given by:

A λ = h/mv B Δx * Δp ≥ h/4π C E = hv D E = mc^2

Question 91

What is the symbol for principal quantum number?

A l B m C s D n

Question 92

What is the symbol for principal quantum number?

A s B n C m D l

Question 93

What is the symbol for principal quantum number?

A l B n C m D s

Question 94

What is the symbol for principal quantum number?

A m B l C s D n

Question 95

What is the symbol for principal quantum number?

A s B m C n D l

Question 96

What is the symbol for principal quantum number?

A s B m C l D n

Question 97

What is the symbol for principal quantum number?

A s B n C m D l

Question 98

What is the symbol for principal quantum number?

A n B l C m D s

Question 99

What is the symbol for principal quantum number?

A m B s C l D n

Question 100

What is the symbol for principal quantum number?

A l B n C s D m

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Who discovered the electron?

What is the mass of a electron?

An electron is _____ charged.

Who discovered the proton?

What is the mass of a proton?

An proton is _____ charged.

Who discovered the neutron?

What is the mass of a neutron?

An neutron is _____ charged.

What is the maximum number of electrons in the principal quantum shell n = 1?

What is the maximum number of electrons in the principal quantum shell n = 2?

What is the maximum number of electrons in the principal quantum shell n = 3?

What is the maximum number of electrons in the principal quantum shell n = 4?

If the frequency of light is 6.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 6.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 2.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 4.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 4.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 6.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 6.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 2.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 2.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 4.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

If the frequency of light is 3.0 x 10^14 Hz, its wavelength is approximately: (c = 3 x 10^8 m/s)

What is the energy of a photon with frequency 5.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 5.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 3.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 2.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 3.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 5.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 2.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 5.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 4.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 3.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

What is the energy of a photon with frequency 2.0 x 10^14 Hz? (h = 6.626 x 10^-34 Js)

An atom has 10 protons and 15 neutrons. What is its mass number?

If an atom has a mass number of 25 and contains 15 neutrons, what is its atomic number?

An atom has 7 protons and 8 neutrons. What is its mass number?

If an atom has a mass number of 15 and contains 8 neutrons, what is its atomic number?

An atom has 5 protons and 5 neutrons. What is its mass number?

If an atom has a mass number of 10 and contains 5 neutrons, what is its atomic number?

An atom has 13 protons and 15 neutrons. What is its mass number?

If an atom has a mass number of 28 and contains 15 neutrons, what is its atomic number?

An atom has 13 protons and 15 neutrons. What is its mass number?

If an atom has a mass number of 28 and contains 15 neutrons, what is its atomic number?

An atom has 21 protons and 25 neutrons. What is its mass number?

If an atom has a mass number of 46 and contains 25 neutrons, what is its atomic number?

An atom has 21 protons and 24 neutrons. What is its mass number?

If an atom has a mass number of 45 and contains 24 neutrons, what is its atomic number?

An atom has 13 protons and 17 neutrons. What is its mass number?

If an atom has a mass number of 30 and contains 17 neutrons, what is its atomic number?

An atom has 16 protons and 16 neutrons. What is its mass number?

If an atom has a mass number of 32 and contains 16 neutrons, what is its atomic number?

An atom has 5 protons and 7 neutrons. What is its mass number?

If an atom has a mass number of 12 and contains 7 neutrons, what is its atomic number?

An atom has 26 protons and 30 neutrons. What is its mass number?

If an atom has a mass number of 56 and contains 30 neutrons, what is its atomic number?

An atom has 28 protons and 30 neutrons. What is its mass number?

If an atom has a mass number of 58 and contains 30 neutrons, what is its atomic number?

An atom has 24 protons and 25 neutrons. What is its mass number?

If an atom has a mass number of 49 and contains 25 neutrons, what is its atomic number?

An atom has 13 protons and 15 neutrons. What is its mass number?

If an atom has a mass number of 28 and contains 15 neutrons, what is its atomic number?

An atom has 21 protons and 24 neutrons. What is its mass number?

If an atom has a mass number of 45 and contains 24 neutrons, what is its atomic number?

An atom has 23 protons and 27 neutrons. What is its mass number?

If an atom has a mass number of 50 and contains 27 neutrons, what is its atomic number?

An atom has 14 protons and 19 neutrons. What is its mass number?

If an atom has a mass number of 33 and contains 19 neutrons, what is its atomic number?

An atom has 8 protons and 13 neutrons. What is its mass number?

If an atom has a mass number of 21 and contains 13 neutrons, what is its atomic number?