1
JEE Advanced 2026 Paper 2 Online
MCQ (More than One Correct Answer)
+4
-1

The correct statement(s) regarding the periodic properties of elements is(are) :

A

Second ionization enthalpy of carbon atom is less than that of boron atom.

B

Increasing order of ionic radii: Al3+ < Mg2+ < Na+

C

Under identical conditions, in solid state, the density of potassium metal is more than density of sodium metal.

D

The H–H bond is weaker than F–F bond.

2
IIT-JEE 1999
MCQ (More than One Correct Answer)
+3
-0.75
Ionic radii of
A
Ti4+ < Mn7+
B
35Cl- < 37Cl-
C
K+ > Cl-
D
P3+ > P5+
3
IIT-JEE 1989
MCQ (More than One Correct Answer)
+1
-0.25
Sodium sulphate is soluble in water whereas barium sulphate is sparingly soluble because
A
the hydration energy of sodium sulphate is more than its lattice energy
B
the lattice energy of barium sulphate is more than its hydration energy
C
the lattice energy has no role to play in solubility
D
the hydration energy of sodium sulphate is less than its lattice energy
4
IIT-JEE 1988
MCQ (More than One Correct Answer)
+1
-0.25
The statements that are true for the long form of the periodic table are:
A
it reflects the sequence of filling the electrons in the order of sub-energy level s, p, d and f
B
it helps to predict the stable valency states of the elements
C
it reflects trends in physical and chemical properties of the elements
D
it helps to predict the relative ionicity of the bond between any two elements

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