Which one of the following compounds is a peroxide ?

1. KO2

2. BaO2

3. MnO2

4. NO2

Subtopic:  Modern Periodic Table & Periodicity |
 52%
NEET - 2010
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The sequence of ionic mobility in aqueous solution is

(1) K+>Na+>Rb+>Cs+

(2) Cs+>Rb+>K+>Na+

(3) Rb+>K+>Cs+>Na+

(4) Na+>K+>Rb+>Cs+

Subtopic:  Atomic Size |
 65%
NEET - 2008
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Which one of the following arrangements does not give the correct picture of the trends indicated against it?

(1) F> Cl> Br> I:Oxidising power

(2) F2 < Cl2 > Br2 > I: Electron gain enthalpy

(3) F> Cl> Br> I: Bond dissociation energy

(4) F> Cl> Br> I2: Electronegativity

Subtopic:  Ionization Energy (IE) |
 70%
NEET - 2008
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Identify the correct order of the size of the following:

(1) Ca2+<K+<Ar<S2-<Cl-

(2) Ca2+<K+<Ar<Cl-<S2-

(3) Ar<Ca2+<K+<Cl-<S2-

(4) Ca2+<Ar<K+<Cl-<S2-

Subtopic:  Atomic Size |
 86%
From NCERT
NEET - 2007
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NEET 2023 - Target Batch - Aryan Raj Singh

An element whose IUPAC name is Ununtrium (Uut) belongs to:

1. s-Block elements                       

2. p-Block elements

3. d-Block elements                              

4. Inner transition elements .

Subtopic:  Modern Periodic Table & Periodicity |
 68%
From NCERT
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Which among the following is not a representative element?

1. Tellurium 2. Tantalum
3. Thallium 4. Astatine
Subtopic:  Modern Periodic Table & Periodicity |
 62%
From NCERT
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The period number and group number of "Tantalum" (Z=73) are respectively :

1. 5, 7    2. 6, 13
3. 6, 5 4. None of the above.
Subtopic:  Modern Periodic Table & Periodicity |
 64%
From NCERT
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Consider the following electronic configuration of an element (P) :

Xe4f145d16s2

The correct statement about element 'P' is :

1. It belongs to the 6th period and the 1st group.

2. It belongs to the 6th period and the 2nd group.

3. It belongs to the 6th period and the 3rd group.

4. None of the above.

Subtopic:  Modern Periodic Table & Periodicity | Electronic Configuration |
 70%
From NCERT
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Which of the following metal is highest electropositive (metallic) in nature ?

(1) Be                                       

(2) Rb

(3) Mn                                       

(4) Tl

Subtopic:  Modern Periodic Table & Periodicity |
 79%
From NCERT
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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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