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- Question
The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. The temperature at which the above mixture will exert a pressure of one standard atm. is
Options- A. less than 100°C
- B. 100°C
- C. between 100 and 110°C
- D. 110.6°C
- Correct Answer
- between 100 and 110°C
- 1. Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent?
Options- A. Temperature
- B. Nature of solute
- C. Pressure
- D. Nature of solvent Discuss
- 2. A vapor whose partial pressure is less than its equilibrium vapor pressure is called the __________ vapor.
Options- A. saturated
- B. superheated
- C. unsaturated
- D. dry gaseous Discuss
- 3. In a neutral solution
Options- A. H+ ions are absent.
- B. OH- ions are absent.
- C. both H+ and OH- ions are present in very small but equal concentration.
- D. none of these. Discuss
- 4. Pick out the wrong unit conversion.
Options- A. 1 Joule = 4.186 calorie.
- B. 1 kcal = 3.968 BTU = 0.00116 kWh = 0.00156 hp.
- C. 1 ton of TNT (tri-nitro-toluene) = 4.2 GJ (1G = 109).
- D. 1 ft.lbf= 0.3238 calorie = 0.1383 kg.m = 1.356 J = 1.356 N.m. Discuss
- 5. The average value of heat of neutralisation of dilute solution of strong acids and strong bases is about __________ kcal/kg.mole of water formed.
Options- A. 6680
- B. 13360
- C. 2481
- D. 97302 Discuss
- 6. The depression in freezing point of a solution is
Options- A. inversely proportional to the mass of solvent.
- B. directly proportional to the mole of solute.
- C. both (a) and (b).
- D. neither (a) nor (b). Discuss
- 7. The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is __________ kg mole.
Options- A. 1
- B. 0
- C. 16
- D. 44 Discuss
- 8. A fluid gas produced on burning furnace oil contains 0.15 gm mole of CO2, 0.05 gm mole of oxygen and 0.80 gm mole of N2. What is its molecular weight?
Options- A. 28.6
- B. 30.0
- C. 30.6
- D. 32.6 Discuss
- 9. Volume occupied by one gm mole of a gas at S.T.P. is
Options- A. 22.4 litres
- B. 22400 litres
- C. 22.4 c.c
- D. 359 litres Discuss
- 10. A sugar solution containing __________ percent sugar is equivalent to 1 Brix.
Options- A. 0.01
- B. 0.1
- C. 1
- D. 10 Discuss
Stoichiometry problems
Search Results
Correct Answer: Pressure
Correct Answer: superheated
Correct Answer: both H+ and OH- ions are present in very small but equal concentration.
Correct Answer: 1 Joule = 4.186 calorie.
Correct Answer: 13360
Correct Answer: both (a) and (b).
Correct Answer: 0
Correct Answer: 30.6
Correct Answer: 22.4 litres
Correct Answer: 1
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