Classification of Elements and Periodicity in Properties
IIT JEE 1989
Q1
Errorless
JEE Section
MSQ
The first ionisation potential of nitrogen and oxygen atoms are related as follows
A.
The ionisation potential of oxygen is less than the ionisation potential of nitrogen
B.
The ionisation-potential of nitrogen is greater than the ionisation potential of oxygen
C.
The two ionisation-potential values are comparable
D.
The difference between the two ionisation-potential is too large
IIT 1989
Q2
Errorless
JEE Section
MSQ
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
IIT 1988
Q3
Errorless
JEE Section
MSQ
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 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.