Discussion
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- Question
Avogadro number is the number of molecules in one __________ of a gas.
Options- A. gram
- B. kilogram
- C. gm.mole
- D. litre
- Correct Answer
- gm.mole
- 1. Boiling point of a solution as compared to that of the corresponding solvent is
Options- A. less
- B. more
- C. same
- D. either more or less; depends upon the solvent Discuss
- 2. Kinematic viscosity of 1 m2 /second is equivalent to __________ stokes.
Options- A. 10
- B. 102
- C. 103
- D. 104 Discuss
- 3. Under conditions of equal reduced pressure and equal reduced temperature, substances are said to be in the 'corresponding states'. At equal reduced conditions i.e., at the corresponding state, the __________ of different gases are nearly the same.
Options- A. compressibility
- B. molecular weight
- C. humidity
- D. none of these Discuss
- 4. Cp equals Cv at
Options- A. 0°C
- B. 0°K
- C. 0°F
- D. 0°R Discuss
- 5. A long cylinder and a sphere both of 5 cms diameter are made from the same porous material. The flat ends of cylinder are sealed. Both the cylinder and sphere are saturated with the same solution of sodium chloride. Later both the objects are immersed for a short and equal interval of time in a large tank of water which is well agitated. The fraction of salt remaining in the cylinder and the sphere are Xc and Xs respectively. Which of the following statement is correct?
Options- A. Xc > Xs
- B. Xc = Xs .
- C. Xc < Xs
- D. Xc greater/less than Xs depending on the length of the cylinder Discuss
- 6. In osmosis through a semi-permeable membrane, diffusion of the
Options- A. solvent is from low concentration to high concentration region.
- B. solvent is from high concentration to low concentration region.
- C. solute takes place.
- D. none of these. Discuss
- 7. One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH4 + 2O2 ? CO2 + 2H2O. Both the reactants and products are in gas phase. ?H°298 = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about
Options- A. 0.19
- B. 0.33
- C. 0.40
- D. 0.67 Discuss
- 8. Roult's law is obeyed by a __________ solution.
Options- A. saturated
- B. molar
- C. normal
- D. none of these Discuss
- 9. Viscosity of atmospheric air may be about __________ centipoise.
Options- A. 0.015
- B. 1.5
- C. 15
- D. 150 Discuss
- 10. Atomic __________ of an element is a whole number.
Options- A. weight
- B. number
- C. volume
- D. radius Discuss
Stoichiometry problems
Search Results
Correct Answer: more
Correct Answer: 104
Correct Answer: compressibility
Correct Answer: 0°K
Correct Answer: Xc < Xs
Correct Answer: solvent is from low concentration to high concentration region.
Correct Answer: 0.19
Correct Answer: none of these
Correct Answer: 0.015
Correct Answer: number
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