Stoichiometry

pH value of a solution containing 1 gm of hydrogen ion per litre will be ____________________?

Byadmin March 12, 2019August 30, 2021

pH value of a solution containing 1 gm of hydrogen ion per litre will be ____________________?

A. 0
B. 1
C. 7
D. 10

Stoichiometry

An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture ?

An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture ?

A. Cork
B. Saw dust
C. Sand
D. Chemically prepared foam

Read More An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture ?
Stoichiometry

500 c.c. each of hydrogen at 700 mm Hg pressure and oxygen at 600 mm Hg pressure are put together in a vessel of 1 litre capacity. The final pressure of the gas mixture will be _____________ mm Hg?

500 c.c. each of hydrogen at 700 mm Hg pressure and oxygen at 600 mm Hg pressure are put together in a vessel of 1 litre capacity. The final pressure of the gas mixture will be _____________ mm Hg?

A. 650
B. 700
C. 600
D. 375

Read More 500 c.c. each of hydrogen at 700 mm Hg pressure and oxygen at 600 mm Hg pressure are put together in a vessel of 1 litre capacity. The final pressure of the gas mixture will be _____________ mm Hg?
Stoichiometry

A solution with reasonably permanent pH is called a/an _______________ solution?

A solution with reasonably permanent pH is called a/an _______________ solution?

A. Ideal
B. Non-ideal
C. Buffer
D. Colloidal

Read More A solution with reasonably permanent pH is called a/an _______________ solution?
Stoichiometry

The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ?

The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ?

A. 0.2
B. 0.1
C. 0.4
D. 0.6

Read More The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ?
Stoichiometry

Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules ____________________?

Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules ____________________?

A. Do not lose energy on collision
B. Are above the inversion temperature
C. Do not exert attractive force on each other
D. Do work equal to loss in kinetic energy

Read More Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules ____________________?
Stoichiometry

Viscosity of 1 centipoise is equal to 1 Centistoke in case of________________?

Viscosity of 1 centipoise is equal to 1 Centistoke in case of________________?

A. Water
B. Mercury
C. Carbon tetrachloride
D. None of these

Read More Viscosity of 1 centipoise is equal to 1 Centistoke in case of________________?