1

IIT-JEE 1989

MCQ (More than One Correct Answer)
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
2

IIT-JEE 1988

MCQ (More than One Correct Answer)
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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