List of top Chemistry Questions on Ideal and Non-ideal solutions

અભિકલ્પન A: પ્રવાહી P અને Q ના મિશ્રણથી બનેલા આદર્શ દ્રાવણ માટે, \( \Delta_{mix}H = 0 \) અને \( \Delta_{mix}V = 0 \) છે.
કારણ R: P અને Q વચ્ચે કોઈ આંતરક્રિયા થતી નથી.

Assertion A : For an ideal solution formed by mixing liquids P and Q, \(\Delta_{mix}H=0\) and \(\Delta_{mix}V=0\). Reason R : No interactions occur between P and Q. In the light of the above statements, choose the most appropriate answer from the options given below.

अभिकथन A :
तरल P और Q के मिश्रण से बने एक आदर्श विलयन के लिए, \[ \Delta_{mix}H=0 \] और \[ \Delta_{mix}V=0 \] होता है।
कारण R :
P और Q के बीच कोई अन्योन्यक्रिया नहीं होती है।
उपयुक्त विकल्प चुनिए :

Consider the following statements about the solutions formed by mixing two liquids.

• [A.] An ideal solution thus formed obeys Raoult's law throughout the composition range.

• [B.] Mixture of chloroform and acetone shows negative deviation from Raoult's law.

• [C.] Mixture of aniline and phenol shows positive deviation from Raoult's law.
Select

1 mole of liquid A and 2 moles of liquid B make a solution having a total vapour pressure 40 torr. The vapour pressure of pure A and pure B are 30 torr and 45 torr respectively. The above solution :

Identify the correct statements. A. Molality of a solution is defined as mass of solute in gram dissolved in solution.
B. Molality of a solution is defined as the number of moles of solute dissolved in \(1\text{ kg}\) of solvent.
C. Aqueous solution of \(\ce{NH4OH}\) and \(\ce{NH4Cl}\) is a basic buffer solution.
D. Solubility of a gas in a liquid increases with increase in pressure.

Assertion (A): \( \Delta_{\text{mix}} H \) for an ideal solution is not equal to zero.
Reason (R): A–B interactions in an ideal solution are the same as between A–A and B–B interactions.

The mixture that forma maximum boiling azeotrope is :

For an ideal solution, the correct option is: