211. Which of the following expressions defines the Baume gravity scale for liquids heavier than water?
(141.5/G) – 131.5
145 – (145/G)
200(G-1)
(400/G) – 400
✅ The correct answer is option B.
Statiometery MCQs
212. The effect of pressure on the heat capacity of the gases __________ is negligible.
At pressure below one atmosphere
Below the critical temperature
Both A & B
Neither A nor B
✅ The correct answer is option C.
213. In __________ process, ions of salts react with water to produce acidity or alkalinity.
Hydration
Hydrolysis
Electrolysis
Dialysis
✅ The correct answer is option B.
214. The heats of vaporisation of CS₂, C₂H₅OH &H₂O are 26.8, 38.6 & 40.6 KJ/kg mole respectively. The order of decreasing inter-molecular forces in these liquids is
H₂O > C₂H₅OH > CS₂
CS₂ > C₂H₅OH > H₂O
H₂O > CS₂ > C₂H₅OH
CS₂ > H₂O > C₂H₅OH
✅ The correct answer is option A.
215. Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be __________ atmosphere.
0.5
1
1.5
2
✅ The correct answer is option B.
216. One micron is equal to __________ cm.
10-Feb
10-Apr
10-Jun
10-Aug
✅ The correct answer is option B.
217. With rise in temperature, the solubility of ammonia in water at a fixed pressure
Increases
Decreases
Remains unchanged
Increases exponentially
✅ The correct answer is option B.
220. Which of the following is not a colligative property?
Osmotic pressure
Depression of freezing point
Lowering of vapor pressure
None of these
✅ The correct answer is option D.