PYQ Vault
EbooksTutor

Two statements on orders of ionisation enthalpy, radius and electron gain enthalpy

This type of question, asked 8 times: 4 Apr 2024, 24 Jan 2025, 21 Jan 2026 S2, 22 Jan 2026 S2, 23 Jan 2026 S2, 24 Jan 2026 S1, 2 Apr 2026 S1, 2 Apr 2026 S2. All 8 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    4 Apr 2024

    136
    Given below are two statements: Statement I: The correct order of first ionization enthalpy values of Li,Na,FLi,Na,F and ClCl is Na<Li<Cl<FNa < Li < Cl < F. Statement II: The correct order of negative electron gain enthalpy values of Li,Na,FLi,Na,F and ClCl is Na<Li<F<ClNa < Li < F < Cl In the light of the above statements, choose the correct answer from the options given below:

    Tap an option to check your answer.

  2. Question 2

    24 Jan 2025

    115
    Given below are two statements : Statement (I): The first ionization energy of Pb is greater than that of Sn Statement(II) : The first ionization energy of Ge is greater than that of Si . In the light of the above statements, choose the correct answer from the options given below :

    Tap an option to check your answer.

  3. Question 3

    21 Jan 2026 S2

    35
    Given below are two statements: Statement-I: The correct order in terms of atomic/ionic radii is Al>Mg>Mg2+>Al3+Al > Mg > {Mg}^{2 +} > {Al}^{3 +}. Statement-II: The correct order in terms of the magnitude of electron gain enthalpy is Cl>Br>S>OCl > Br > S > O. In the light of the above statements, choose the correct answer from the options given below:

    Tap an option to check your answer.

  4. Question 4

    22 Jan 2026 S2

    37
    Given below are two statements : Statement-I : C<O<N<FC < O < N < F is the correct order in terms of first ionization enthalpy values. Statement-II : S>Se>Te>Po>OS > Se > Te > Po > O is the correct order in terms of the magnitude of electron gain enthalpy values. In the light of the above statements, choose the correct answer from the options given below :

    Tap an option to check your answer.

  5. Question 5

    23 Jan 2026 S2

    34
    Given below are two statements : Statement I: The second ionisation enthalpy of Na is larger than the corresponding ionisation enthalpy of Mg. Statement II : The ionic radius of O2−O^{2 -} is larger than that of F−F^{-}. In the light of the above statements, choose the correct answer from the options given below.

    Tap an option to check your answer.

  6. Question 6

    24 Jan 2026 S1

    45
    Given below are two statements : Statement I: K>Mg>Al>BK > Mg > Al > B is the correct order in terms of metallic character. Statement II : Atomic radius is always greater than the ionic radius for any element. In the light of the above statements, choose the correct answer from the options given below

    Tap an option to check your answer.

  7. Question 7

    2 Apr 2026 S1

    34
    Given below are two statements : Statement (I) : The first ionisation enthalpy of the elements Na,Mg,ClNa,Mg,Cl and Ar follows the order Na>Mg>Cl>ArNa > Mg > Cl > Ar. Statement (II) : Among Ca,Al,FeCa,Al,Fe and B , the third ionisation enthalpy is very high for Ca . In the light of the above statements, choose the correct answer from the options given below :

    Tap an option to check your answer.

  8. Question 8

    2 Apr 2026 S2

    34
    Given below are two statements : Statement-I : The second ionization enthalpy of B,AlB,Al and Ga is in the order of B>Al>GaB > Al > Ga. Statement-II : The correct order in terms of first ionization enthalpy is Si<Ge<Pb<SnSi < Ge < Pb < Sn. In the light of the above statements, choose the correct answer from the options given below :

    Tap an option to check your answer.