NEET Chemistry Classification of Elements and Periodicity in Properties MCQs

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    NEET Questions / Chemistry / Classification of Elements and Periodicity in Properties

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    Medeleev'S Periodic Table
    Position Of Element In P.T
    Iupac Names
    S,P,D,F-Block
    Types Of Elements
    Atomic Radius
    Ionisation Energy
    Electron Affinity
    Nature Of Oxides
    Electro Negativity, Electro Positivity, Valency
    Introduction
    91.

    The correct order of decreasing first ionisation energy is

    A

    C>B>Be>LiC{\rm{ }} > {\rm{ }}B{\rm{ }} > {\rm{ }}Be{\rm{ }} > {\rm{ }}Li

    B

    C>Be>B>LiC{\rm{ }} > {\rm{ }}Be{\rm{ }} > {\rm{ }}B{\rm{ }} > {\rm{ }}Li

    C

    B>C>Be>LiB{\rm{ }} > {\rm{ }}C{\rm{ }} > {\rm{ }}Be{\rm{ }} > {\rm{ }}Li

    D

    Be>Li>B>CBe{\rm{ }} > {\rm{ }}Li{\rm{ }} > {\rm{ }}B{\rm{ }} > {\rm{ }}C

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Ionisation Energy
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :ionization energy, periodic trends, electronic configuration
    92.

    The elements X,Y,Z and T have the indicated electronic configuration. Starting with the innermost shell, which is the most metallic element?

    A

    X=2,8,4

    B

    Y=2,8,8

    C

    Z=2,8,8,1

    D

    T=2,8,8,7

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Electron Affinity
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :electronic configuration, metallic character, periodic trends
    93.

    The electronic configuration of the element with maximum electron affinity is

    A

    [Ne]3s²3p⁵

    B

    [He]2s²2p⁴

    C

    [Ne]3s²3p⁶

    D

    [He]2s²2p⁵

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Electron Affinity
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :electron affinity, electronic configuration, periodic trends, halogens
    94.

    The statement that is true for the long form of the Periodic Table is

    A

    It reflects the order of decreasing atomic weights

    B

    It reflects the order of increasing atomic numbers

    C

    It reflects the order of increasing atomic radii

    D

    It reflects the order of increasing ionization energy

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Medeleev'S Periodic Table
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Periodic Table, Electronic Configuration, Valency, Periodic Trends
    95.

    A sudden large jump between the value of first and second ionisation energies of elements would be associated with which of the following electronic configurations?

    A

    1s2,2s22p6,3s11{s^2},2{s^2}2{p^6},3{s^1}

    B

    1s2,2s22p6,3s23p11{s^2},2{s^2}2{p^6},3{s^2}3{p^1}

    C

    1s2,2s2,2p6,3s13p21{s^2},2{s^2},2{p^6},3{s^1}3{p^2}

    D

    1s2,2s22p6,3s21{s^2},2{s^2}2{p^6},3{s^2}

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Electron Affinity
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Ionization Energy, Electronic Configuration, Core Electrons, Valence Electrons
    96.

    Correct order of first ionisation potential among the following elements Be, B, C, N, O is

    A

    Be < B < C < N < O

    B

    B < Be < C < O < N

    C

    B < C < N < O < Be

    D

    O < N < C < Be < B

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Ionisation Energy
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :ionization potential, electronic configuration, periodic trends
    97.

    The element with atomic number 36 belongs to …block in the Periodic Table.

    A

    p

    B

    s

    C

    f

    D

    d

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Iupac Names
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :periodic table, electronic configuration, blocks of periodic table
    98.

    In the following, the element with the highest ionisation energy is

    A

    [Ne]3s23p1\left[ {{\rm{Ne}}} \right]3{s^2}3{p^1}

    B

    [Ne]3s23p3\left[ {{\rm{Ne}}} \right]3{s^2}3{p^3}

    C

    [Ne]3s23p2\left[ {{\rm{Ne}}} \right]3{s^2}3{p^2}

    D

    [Ne]3s23p4\left[ {{\rm{Ne}}} \right]3{s^2}3{p^4}

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Ionisation Energy
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :ionization energy, electronic configuration, Hund's rule, stability of half-filled orbitals
    99.

    The successive ionisation energy values for an element ‘X’ are given below XV. Ist ionisation energy =410 kJ mol−1{\rm{mo}}{{\rm{l}}^{ - 1}} XVI. 2nd ionisation energy =820 kJ mol−1{\rm{mo}}{{\rm{l}}^{ - 1}} XVII. 3rd ionisation energy =1100 kJ mol−1{\rm{mo}}{{\rm{l}}^{ - 1}} XVIII. 4th ionisation energy =1500 kJ mol−1{\rm{mo}}{{\rm{l}}^{ - 1}} XIX. 5th ionisation energy =3200 kJ mol−1{\rm{mo}}{{\rm{l}}^{ - 1}} Find out the number of valence electron for the atom ‘X ’

    A

    4

    B

    3

    C

    5

    D

    2

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Ionisation Energy
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :ionization energy, valence electrons, electronic configuration
    100.

    The electronic configuration, 1s2,  2s22p6,  3s2  3p63d91{s^2},\;2{s^2}2{p^6},\;3{s^2}\;3{p^6}3{d^9} represents a

    A

    Ground state of a Cobalt atom

    B

    Excited state of a Cobalt atom

    C

    Ground state of a Nickel atom

    D

    Excited state of a Copper atom

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:Classification of Elements and Periodicity in Properties
    🎯Topic:Introduction
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :electronic configuration, ionization, cation, transition metals

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