Which one is not equal to zero for an ideal solution?
(1)ΔHmix 
(2)ΔSmix
(3)ΔVmix
(4)ΔP=PObserved-PRaoult

Subtopic:  Introduction & Colligative properties |
 85%
From NCERT
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Which one of the following electrolytes has the same value of van't Hoff's factor(i) as that of Al2(SO4)(if all are 100% ionised)? 

1. K2SO4

2. K3[Fe(CN)6]

3. Al(NO3)3

4. K4[Fe(CN)6]

Subtopic:  Introduction & Colligative properties | Van’t Hoff Factor |
 90%
From NCERT
NEET - 2015
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Of the following 0.10 m  aqueous solutions, which one will exhibit the largest freezing point depression?

(a) KCl

(b) C6H12O6

(c) Al2(SO4)3

(d) K2SO4

Subtopic:  Depression of Freezing Point |
 84%
From NCERT
NEET - 2014
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The van't Hoff factor, i for a compound which undergoes dissociation in one solvent and association in other solvent is respectively.

(1) less than one and less than one

(2) greater than one and less than one

(3) greater than one and greater than one

(4) less than one and greater than one

Subtopic:  Van’t Hoff Factor |
 88%
From NCERT
NEET - 2011
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 A solution containing 10 g per dm3 of urea (molecular mass = 60 g mol-1) is isotonic with a 5% solution of a non-volatile solute. The molecular mass of this non-volatile solute is:

(1) 250 g mol-1               

(2) 300 g mol-1

(3) 350 g mol-1               

(4) 200 g mol-1

Subtopic:  Concentration Terms & Henry's Law |
 85%
From NCERT
NEET - 2006
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1.00 g of a non-electrolyte solute (molar mass 250g mol) was dissolved in 51.2 g of benzene. If the freezing point depression constant, Kf of benzene is 5.12 K kg mol-1, the freezing point of benzene will be lowered by:
1. 0.4 K
2. 0.3 K
3. 0.5 K
4. 0.2 K

Subtopic:  Depression of Freezing Point |
 88%
From NCERT
NEET - 2006
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Consider equimolal aqueous solutions of NaHSO4 and NaCl with ATb and Arb as their respective boiling point elevations. The value of limx0ΔTbΔTb' will be :

(1) 1

(2) 1.5

(3) 3.5

(4) 3

Subtopic:  Elevation of Boiling Point |
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15 g of methyl alcohol is dissolved in 35 g of water. The weight percentage of methyl alcohol in solution is

(1) 30%

(2) 50%

(3) 70%

(4) 75%

Subtopic:  Concentration Terms & Henry's Law |
 80%
From NCERT
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Sea water contains 5.8 × 10–3 g of dissolved oxygen per kilogram. The concentration of oxygen in parts per million is:

1. 5.8 ppm

2. 58.5 ppm

3. 0.58 ppm

4. 0.05 ppm

Subtopic:  Concentration Terms & Henry's Law |
 73%
From NCERT
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Amount of NaOH present in 200 ml of 0.5 N solution is 

(1) 40 g

(2) 4 g

(3) 0.4 g

(4) 4.4 g

Subtopic:  Concentration Terms & Henry's Law |
 83%
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