1
2
3
Unpredictable
✅ The correct answer is option C.
Statiometery MCQs
Sodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature.
Carbonate (monohydrate)
Chloride
Thiosulphate
Bisulphite
✅ The correct answer is option A.
An equation for calculating vapour pressure is given by, log10 P = A – B(t + c). This is called the
Kistyakowsky equation
Antonic equation
Kopp’s rule
Trouton’s rule
✅ The correct answer is option B.
The pressure of ‘V’ litres of a dry gas is increased from 1 to 2 kgf/cm² at a constant temperature. The new volume will become
V/2
2V
V/4
V²
✅ The correct answer is option A.
The vapor pressure of a substance, at its melting point, is __________ in the solid state as compared to that in the liquid state.
Less
More
Same
Either A or B; depends on the nature of the substance
✅ The correct answer is option C.
The number of H⁺ in 1 c.c solution of pH 13 is
6.023 xl0¹³
6.023 x 10¹⁰
6.023xl0⁷
10¹³
✅ The correct answer is option C.
The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements. This is the statement of
Law of Petit and Dulong
Kopp’s rule
Nearnst heat theorem
Trouton’s rule
✅ The correct answer is option B.
Kopp’s rule is helpful in finding the
Heat capacities of solids
Heat capacities of gases
Molal heat capacities of gases
Activation energy
✅ The correct answer is option A.
The density of a liquid is 1500 kg/m³. Its value in gin/litre will be equal to
1.5
15
150
1500
✅ The correct answer is option D.
The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is
0.4
0.6
0.8
0.2
✅ The correct answer is option B.