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- Question
Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = hydrogen ion concentration in the solution).
Options- A.
![Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = h](../../../imagesresources/questions-resources/XHXQDGMsPdcuVxbP.png)
- B.
![Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = h](../../../imagesresources/questions-resources/ahQqLWmCKdHRryGs.png)
- C.
![Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = h](../../../imagesresources/questions-resources/MvOcCBldajKMgUfr.png)
- D. none of these
- Correct Answer
-
- 1. The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 x __________
Options- A. 1026
- B. 1023
- C. 1020
- D. 1019 Discuss
- 2. The atomic heat capacities of all solid elements __________ with decrease in temperature.
Options- A. increases
- B. decreases
- C. remains unchanged
- D. approach zero at 0°C Discuss
- 3. Which of the following is not a unit of pressure?
Options- A. Parsec
- B. Kilo-pascal
- C. Bar
- D. Newton/metre2 Discuss
- 4. "The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes". This is the __________ law.
Options- A. Dalton's
- B. Amgat's
- C. GayLussac's
- D. Avogadro's Discuss
- 5. If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will
Options- A. be reduced to l/4th.
- B. increase four times.
- C. increase two times.
- D. none of these. Discuss
- 6. A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is
Options- A. N2O4
- B. N2O5
- C. N2O3
- D. none of these Discuss
- 7. Raoult's law is not applicable to the
Options- A. solutes which dissociate or associate in the particular solution.
- B. concentrated solutions.
- C. both(b)&(c)
- D. solutions containing non-volatile solute. Discuss
- 8. 2 litres of nitrogen at N.T.P. weighs __________ gms.
Options- A. 14
- B. 2.5
- C. 28
- D. 1.25 Discuss
- 9. The density of a liquid is 1500 kg/m3. Its value in gin/litre will be equal to
Options- A. 1.5
- B. 15
- C. 150
- D. 1500 Discuss
- 10. The unit of dynamic viscosity is
Options- A. stoke
- B. poise
- C. gm/cm sec.
- D. both (b) & (c) Discuss
Stoichiometry problems
Search Results
Correct Answer: 1020
Correct Answer: decreases
Correct Answer: Parsec
Correct Answer: Amgat's
Correct Answer: increase four times.
Correct Answer: N2O5
Correct Answer: both(b)&(c)
Correct Answer: 2.5
Correct Answer: 1500
Correct Answer: both (b) & (c)
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