1.  K+,Cl-,Mg2+,Sc3+

2.  Na+,Ca2+,Sc3+,F-

3.  K+,Ca2+,Sc3+,Cl-

4.  Na+,Mg2+,Al3+,Cl-

4
Correct Answer :

K+,Ca2+,Sc3+,Cl-


Explanation :
No Explanation available for this question

1.  Dobereiner

2.  Mendeleev

3.  Robert Boyle

4.  Prout

4
Correct Answer :

Prout


Explanation :
No Explanation available for this question

1.  1

2.  2

3.  3

4.  4

4
Correct Answer :

3


Explanation :
No Explanation available for this question

1.  Atomic size

2.  Negative electron gain enthalpy

3.  Ionisation enthalpy

4.  None of these

4
Correct Answer :

Atomic size


Explanation :
No Explanation available for this question

1.  AI

2.  AI3+

3.  mg2+

4.  Mg

4
Correct Answer :

AI3+


Explanation :
No Explanation available for this question

1.  Ionization enthalpy

2.  Solubility of their hydroxides

3.  Solubility of their sulphates

4.  Electronegativity

4
Correct Answer :

Solubility of their hydroxides


Explanation :
No Explanation available for this question

1.  High ionization enthalpy

2.  Low ionization enthalpy

3.  Stable electronic configuration

4.  None of these

4
Correct Answer :

Low ionization enthalpy


Explanation :
No Explanation available for this question

1.  Ionization enthalpy increases for each successive electron

2.  The greater increase in ionization enthalpy is experienced on removal of electron from core noble gas configuration

3.  End of valence electrons is marked by a big jump in ionization enthalpy

4.  Removal of electron from orbitals bearing lower n value is easier than from orbital having higher n value

4
Correct Answer :

Removal of electron from orbitals bearing lower n value is easier than from orbital having higher n value


Explanation :
No Explanation available for this question

1.  Pauling

2.  Mulliken-Jaffe

3.  Allred-Rochow

4.  All of the these

4
Correct Answer :

All of the these


Explanation :
No Explanation available for this question

1.  Facilitate systematic study of element and their compounds

2.  Rationalize known chemical facts about element

3.  Predict new element

4.  All of the these

4
Correct Answer :

All of the these


Explanation :
No Explanation available for this question

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python