The graph that represents the relationship between atomic number (Z) and magnetic moment of d-block elements among the following is-

[Outer electronic configuration : (n-1)dxns1 or 2]

1.

2. 

3. 

4. 

Subtopic:  Electronic Configuration |
 60%
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The correct statement among the following regarding the element Unununium " is: 

1. It is an inner transition element.

2. It belongs to the 8th period in the periodic table.

3. It is a transition element.

4. It is a non-transition element.
 

Subtopic:  Modern Periodic Table & Periodicity |
 63%
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The following property/ies decrease from left to right across the periodic table and increase from top to bottom:

(i) Atomic radius (ii) Electronegativity (iii) Ionisation energy (iv) Metallic character

1. (i) only 2. (i), (ii), and (iii)
3. (i), (iii), and (iv) 4. (i), and (iv)
Subtopic:  Modern Periodic Table & Periodicity |
 76%
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Consider the following information about element P and Q :

                        Period number            Group number

P                               2                                 15

Q                               3                                 2

Then formula of the compound formed by P and Q element is :

(1) PQ         

(2) P3Q2           

(3)Q3P2            

(4)PQ2

Subtopic:  Nature of Compound |
 72%
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Incorrect order of radius is :

(1) Sr2+ <Rb+<Br <Se2-                   (2) Co>Ni>Cu>Zn

(3)  Co>Co2+>Co3+>Co4+                   (4) As3->Se2->Cs+>Ba2+

Subtopic:  Atomic Size |
 71%
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The radius of which ion is closest to that of Li+ ion ?

1. Na+                                       

2. Be2+

3. Mg2+                                       

4. Al3+

Subtopic:  Atomic Size |
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The correct order of IE2 is:

(1) Ne>F>O>N                     

(2) O>F>Ne>N

(3) Ne>O>F>N                     

(4) O>Ne>F>N

Subtopic:  Ionization Energy (IE) |
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Which of the following transformation least energy is required?

(1) F-g  Fg +e-                 

(2) P-gPg+e-

(3) S-gSg+e-                   

(4) Cl-gClg+e-

Subtopic:  Electron Affinity (EA) |
 59%
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Which of the following represents correct order of electron affinity?

(1) Cl>F>S>O                           

(2) F>O>S>Cl

(3) F>Cl>S>O                           

(4) Cl>S>O>F

Subtopic:  Electron Affinity (EA) |
 81%
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Correct expression of "Allred and Rochow's" scale is:

(a) Electronegativity =0.744Zeff.r2+0.359

(b) Electronegativity =0.359r2Zeff.+0.744

(c) Electronegativity =0.359Zeff.r+0.744

(d) Electronegativity =0.359Zeff.r2+0.744

Subtopic:  Electronegativity |
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