HARD
JEE Main/Advance
IMPORTANT
Earn 100

The set representing the correct order of first ionization potential is
(a)
(b)
(c)
(d)

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Important Questions on Classification of Elements and Periodicity in Properties
EASY
JEE Main/Advance
IMPORTANT
Identify the least stable ion amongst the following:

HARD
JEE Main/Advance
IMPORTANT
Which one of the following ions has the highest value of ionic radius?

EASY
JEE Main/Advance
IMPORTANT
The formation of the oxide ion requires first, an exothermic and then an endothermic step as shown below:
,
.
This is because:

HARD
JEE Main/Advance
IMPORTANT
In which of the following arrangements, the order is not according to the property indicated against it?

EASY
JEE Main/Advance
IMPORTANT
The increasing order of the first ionization enthalpies of the elements and (lowest first) is:

HARD
JEE Main/Advance
IMPORTANT
The correct sequence which shows decreasing order of the ionic radii of the element is

MEDIUM
JEE Main/Advance
IMPORTANT
The correct order of electron gain enthalpy with negative sign of and , having atomic number and respectively, is

HARD
JEE Main/Advance
IMPORTANT
The increasing order of the ionic radii of the given isoelectronic species is
