Which gas when passed through dilute blood will impart a cherry red colour to the solution?

1. CO₂                               

2. COCl₂

3. NH₃                             

4. CO

In a dilute solution, any colligative property depends on 

1. The total number of neutral species in the solution

2. The total number of ionic species in the solution

3. The total number of species irrespective of whether they are ionic or non-ionic.

4. The types of forces operating between the non-ionic species, ionic species and the solvent molecules

An aqueous solution of hydrochloric acid -

1. Obeys Raoult's law

2. Shows negative deviations from Raoult's law

3. Shows positive deviations from Raoult's law

4. Obeys Henry's law at all compositions

Total vapour pressure of a mixture of 1 mol A (p_A°  = 150 torr) and 2 mol B (${\mathrm{p}}_{\mathrm{B}}^{°}$ = 240 torr) is 200 torr. In this case:-

1. There is a positive deviation from Raoult's law
2. There is a negative deviation from Raoult's law
3. There is no deviation from Raoult's law
4. None of these 

Which one of the following is incorrect for ideal solution ?

(1) $∆{\mathrm{H}}_{\mathrm{mix}}=0$

(2) $∆{\mathrm{U}}_{\mathrm{mix}}=0$

(3) $∆\mathrm{P}={\mathrm{P}}_{\mathrm{obs}}-{\mathrm{P}}_{\mathrm{calculated}<mspace\; width="1em"></mspace>\mathrm{by}<mspace\; width="1em"></mspace>\mathrm{Raoul}\text{'}\mathrm{s}<mspace\; width="1em"></mspace>\mathrm{law}}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>0$

(4) $∆{\mathrm{G}}_{\mathrm{mix}}=0$

Which one is not equal to zero for an ideal solution?

1. ΔH_mix 

2. ΔS_mix

3. ΔV_mix

4. ΔP=P_Observed-P_Raoult

Which one of the following elctrolytes has the same value of van't Hoff's factor(i) as

that of Al₂(SO₄)₃  (if all are 100% ionised)? 

1. K₂SO₄

2. K₃[Fe(CN)₆]

3. Al(NO₃)₃

4. K₄[Fe(CN)₆]

Assertion : Perfectly ideal solution is not possible with respect to binary solution of two liquids.

Reason : No two substances can have exactly the same nature of intermolecular forces & also of the same magnitude.