Incorrect order of ionic size is :

(a)$L{a}^{3+}>G{d}^{3+}>E{u}^{3+}>L{u}^{3+}$           (b)${V}^{2+}>{V}^{3+}>{V}^{4+}>{V}^{5+}$

(c)$T{l}^{+}>I{n}^{+}>S{n}^{2+}>S{b}^{3+}$                (d)${K}^{+}>S{c}^{3+}>{V}^{5+}>M{n}^{7+}$

Concept Questions :-

Atomic Size
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Difficulty Level:

Consider the following changes:

The second ionization energy of M could be calculated from the energy values associated with :

(a) 1+3+4                  (b) 2-1+3

(c) 1+5                      (d) 5-3

Concept Questions :-

Ionization Energy (IE)
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Difficulty Level:

Which of the following statements is/are wrong?

(a) van der Waals' radius of iodine is more than its covalent radius

(b) All isoelectronic ions belong to same period of the periodic table

(c) $I.E{.}_{1}$ of N is higher than that of O while $I.E{.}_{2}$ of O is higher than that of N

(d) The electron affinity N is almost zero while that of P is 74.3 kJ $mo{l}^{-1}$

Concept Questions :-

History
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Difficulty Level:

Consider the following conversions:

(i) ${O}_{\left(g\right)}+{e}^{-}\to {O}_{\left(g\right)}^{-}∆{H}_{1}$                 (ii)

(iii)           (iv)

That according to given information the incorrect statement is:

(a) $∆{H}_{3}$ is more negative than

(b)

(c)

(d)

Concept Questions :-

Electron Affinity (EA)
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Difficulty Level:

Aqueous solutions of two compounds  are prepared in two different beakers. If, the electronegativity of  then the nature of two solutions will be respectively:

(a) acidic, basic             (b) acidic, acidic

(c) basic, acidic             (d) basic, basic

Concept Questions :-

Electronegativity
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Difficulty Level:

First three ionisation energies (in kJ/mol) of three representative elements are given below:

Element     $I{E}_{1}$                    $I{E}_{2}$                   $I{E}_{3}$

P               495.8                4562                  6910
Q               737.7               1451                   7733
R               577.5                1817                  2745

Then incorrect option is :

(a) Q: Alkaline earth metal        (b) P: Alkali metals

(c) R: s-block element              (d) They belong to same period

Concept Questions :-

Ionization Energy (IE)
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Difficulty Level:

If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal $mo{l}^{-1}$ respectively, then the electronegativity of the element on the Pauling scale is:

(a) 2.8                                      (b) 0.0

(c) 4.0                                      (d) 2.6

Concept Questions :-

Ionization Energy (IE)
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Difficulty Level:

The incorrect statement is:

(a) The second ionisation energy of Se is greater than that of second ionisation energy of As

(b) The first ionisation energy of ${C}^{2+}$ ion is greater than that of first ionisation energy of ${N}^{2+}$ ion

(c) The third ionisation energy of F is greater than that of third ionisation energy of O

(d) Helogens have highest I.E. in respective period

Concept Questions :-

Ionization Energy (IE)
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Difficulty Level:

Consider the following ionisation reactions :

I.E. (kJ $mo{l}^{-1}$)

If monovalent positive ion of A, divalent positive ion of B and trivalent positive ion of C have zero electron. Then incorrect order of corresponding I.E. is :

(a)${C}_{3}>{C}_{2}>{B}_{2}$                       (b)${B}_{1}>{A}_{1}>{C}_{1}$

(c)${C}_{3}>{C}_{2}>{B}_{2}$                       (d)${B}_{2}>{C}_{3}>{A}_{1}$

Concept Questions :-

Ionization Energy (IE)
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Which of the following is the incorrect match for atom of element?

(a)

(b)

(c)

(d)

Concept Questions :-

Electronic Configuration