1
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0

When a cation leaves its normal position in the crystal and moves to some interstitial space, the defect in the crystal is known as

A
Schottky defect
B
$$F$$-centre
C
Frenkel defect
D
non-stoichiometric defect
2
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0

In thermodynamics, a quantity whose value simply depends upon the initial and final state of the system is called

A
a thermodynamic quantity
B
a state function
C
an adiabatic quantity
D
a path function
3
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0

If $$\Delta H$$ and $$\Delta S$$ are positive for a reaction, the reaction will be spontaneous only when

A
$$T \Delta S=\Delta H$$
B
$$T \Delta S>\Delta H$$
C
$$T \Delta S<\Delta H$$
D
$$T \Delta S$$ is negative
4
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0

A catalyst is a substance which

A
increases the rate of forward reaction in reversible reaction
B
increases the rate of both forward and backward reaction in a reversible reaction
C
does not influence a reversible reaction
D
increases the rate of backward reaction in a reversible reaction.
EXAM MAP