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Q. No.If molality of the dilute solution is doubled, the value of molal depression constant (Kf) will be?
(1) doubled
(2) halved
(3) tripled
(4) unchanged
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe temperature dependent term among the following is -
| 1. | Molality | 2. | Molarity |
| 3. | Mole fraction | 4. | Weight percentage |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe van't Hoff factor [i] for a dilute aqueous solution of the strong electrolyte barium hydroxide is?
(1) 0
(2) 1
(3) 2
(4) 3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements about the composition of the vapour over an ideal 1:1
molar mixture of benzene and toluene is correct? Assume that the temperature is
constant at 25°C.
(Given, vapour pressure data at 25°C, benzene = 12.8 kPa, toluene = 3.85 kPa)
1. The vapour will contain a higher percentage of toluene
2. The vapour will contain equal amounts of benzene and toluene
3. Not enough information is given to make a prediction
4. The vapour will contain a higher percentage of benzene
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(\Delta H_{\text{Mix}}=0\)
2. \(\Delta U_{\text{Mix}}=0\)
3. \(\Delta P=P_{\text{obs.}}-P_{\text{(Calculated by Raoult's law)}}=0\)
4. \(\Delta G_{\text{Mix}}=0\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLiquid ↔ Vapour
Which of the following relation is correct?
1. \(\frac{dlnp}{dT}=\frac{-\Delta H_v}{RT}\)
2. \(\frac{dlnp}{dT^2}=\frac{-\Delta H_v}{T^2}\)
3. \(\frac{dlnp}{dT}=\frac{\Delta H_v}{RT^2}\)
4. \(\frac{dlnG}{dT^2}=\frac{-\Delta H_v}{RT^2}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
- 1(current)
Q. No.
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