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Q. No.

In the II period, the most acidic oxide is formed by:

1. F

2. N

3. O

4. Li

Subtopic:  Nature of Compound |
Level 4: Below 35%
Hints

Determine the correct order of ionization energies for the elements Si, P, Ge, and As, from lowest to highest:

1. Si < P < Ge < As 2. As < Ge < P < Si
3. Ge < Si < As < P 4. Ge < As < Si < P
Subtopic:  Ionization Energy (IE) |
Level 3: 35%-60%
Please attempt this question first.
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Please attempt this question first.

The element having electronic configuration [Kr]4d104f14, 5s25p6, 6s2 belongs to:

1. s-block

2. p-block

3. d-block

4. f-block

Subtopic:  Electronic Configuration |
Level 3: 35%-60%
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Which of the following options shows an incorrect order of ionic radii?

1. Sr2+<Rb+<Br-<Se2-

2. Nb5+<Zr4+<Y3+

3. Co>Co2+>Co3+>Co4+

4. Ba2+>Cs+<Se2-<As3-

Subtopic:  Atomic Size |
 66%
Level 2: 60%+
Hints

Which is the correct order of ionization energies?

1. F- > F > Cl- > Cl

2. F > Cl > Cl- > F-

3. F- > Cl- > Cl > F

4. F- > Cl- > F > Cl

Subtopic:  Ionization Energy (IE) |
 50%
Level 3: 35%-60%
Hints

Which of the following pairs has the most significant size variation?

1. Na and Na+ 2. Na and K
3. Cl and Cl– 4. Mg and Mg+
Subtopic:  Atomic Size |
Level 4: Below 35%
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The atomic species that has the maximum ionization energy is : 

1. O- 2. S-
3. Se- 4. Te-
Subtopic:  Ionization Energy (IE) |
Level 3: 35%-60%
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The incorrect match among the following options is:

1.

\([Ar]3d^54s^1 \rightarrow 4^{th} \text {period}, 6^{th} \text {group}\)
2. \([Kr]4d^{10} \rightarrow 5^{th} \text {period}, 12^{th} \text {group}\)
3. \([Rn]6d^2 7s^2\rightarrow 7^{th} \text {period}, 3^{rd} \text {group}\)
4. \([Xe]4f^{14} 5d^26s^2 \rightarrow 6^{th} \text {period}, 4^{th} \text {group}\)
Subtopic:  Electronic Configuration |
 51%
Level 3: 35%-60%
Hints

Consider the following four elements, which are represented according to long form of periodic table.


Here W, Y and Z are left, up and right elements with respect to the element 'X' and 'X' belongs to 16th group and 3rd period. Then according to given information the incorrect statement regarding given elements is:

1. Maximum electronegativity :Y             

2. Maximum catenation property :X

3. Maximum electron affinity :Z               

4. Y exhibits variable covalency

Subtopic:  Electron Affinity (EA) |
Level 3: 35%-60%
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1st (∆H1) and 2nd  (∆H2) Ionization Enthalpies (in kJ mol–1) and the (∆egH) Electron Gain Enthalpy (in kJ mol–1) of a few elements are given below:

Elements ΔH1 ΔH2 ΔegH
I 520 7300 –60
II 419 3051 –48
III 1681 3374 –328
IV 1008 1846 –295
V 2372 5251 +48
VI 738 1451 –40

The most reactive metal is:

1. VI 2. III
3. I 4. II
Subtopic:  Ionization Energy (IE) |
Level 3: 35%-60%
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Select Chapter Topics:
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Evolution of Periodic Table
Modern Periodic Table & Periodicity
Electronic Configuration
Screening Effect
Atomic Size
Ionization Energy (IE)
Electron Affinity (EA)
Electronegativity
Nature of Compound
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