Discussion
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- Question
On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes
Options- A. 1
- B. 8
- C. 4
- D. 2
- Correct Answer
- 4
- 1. S.T.P. corresponds to
Options- A. 1 atm. absolute pressure & 15.5°C.
- B. 760 mm Hg gauge pressure & 15.5°C.
- C. 760 torr & 0°C.
- D. 101.325 kPa gauge pressure & 15.5°C. Discuss
- 2. One Newton is equal to __________ dynes.
Options- A. 102
- B. 103
- C. 104
- D. 105 Discuss
- 3. Which of the following is not a unit of pressure?
Options- A. Torr
- B. Newton/m2
- C. Parsec
- D. Ata, bar or pascal Discuss
- 4. Pick out the wrong unit conversion of calorific value.
Options- A. 1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg.
- B. 1 BTU/ft3 = 8.9 kcal/m3 = 0.038 MJ/m3.
- C. 1 BTU/lb = 2.3 kcal/kg.
- D. 1 kcal/m3 = 0.1124 BTU/ft3. Discuss
- 5. Which of the following is not a colligative property?
Options- A. Osmotic pressure
- B. Depression of freezing point
- C. Lowering of vapor pressure
- D. none of these. Discuss
- 6. A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the
Options- A. atomic weight of the metal is 4.
- B. equivalent weight of the metal is 4.
- C. atomic weight of the metal is 2.
- D. equivalent weight of the metal is 8. Discuss
- 7. 1st law of thermodynamics is nothing but the law of conservation of
Options- A. momentum
- B. mass
- C. energy
- D. none of these Discuss
- 8. Equilibrium constant decreases as the temperature
Options- A. increases, for an exothermic reaction.
- B. decreases, for an exothermic reaction.
- C. increases, for an endothermic reaction.
- D. none of these. Discuss
- 9. Which of the following is a thermodynamic property of a system?
Options- A. Concentration
- B. Mass
- C. Temperature
- D. Entropy Discuss
- 10. Heating of water under atmospheric pressure is an __________ process.
Options- A. isochoric
- B. isobaric
- C. adiabatic
- D. isothermal Discuss
Stoichiometry problems
Search Results
Correct Answer: 1 atm. absolute pressure & 15.5°C.
Correct Answer: 105
Correct Answer: Parsec
Correct Answer: 1 BTU/lb = 2.3 kcal/kg.
Correct Answer: none of these.
Correct Answer: equivalent weight of the metal is 4.
Correct Answer: energy
Correct Answer: increases, for an exothermic reaction.
Correct Answer: Entropy
Correct Answer: isobaric
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