Colligative Properties

Solution	Van't Hoff Factor
0.01 M Na₂SO₄	3
0.01 M KNO₃	2
0.015 M urea	2
0.015 M glucose	2

%5CDelta%20%7B%7B%5CTau%20%7D_%7Bf%7D%7D%3Di%5Ctimes%20%7B%7Bk%7D_%7Bf%7D%7D%5Ctimes%20m

%5Ctext%7BIons%7D%5C%2C%5Ctext%7Bat%7D%5C%2C%5Ctext%7Bequilibrium%7D%5Coverset%7BHBr%7D%7B%5Cmathop%7B1-%5Calpha%20%7D%7D%5C%2C%5Cxrightarrow%7B%7B%7D%7D%5Cunderset%7B%5Calpha%20%7D%7B%5Cmathop%7B%7B%7BH%7D%5E%7B%2B%7D%7D%7D%7D%5C%2C%2B%5Cunderset%7B%5Calpha%20%7D%7B%5Cmathop%7BB%7B%7Br%7D%5E%7B-%7D%7D%7D%7D%5C%2C

%5Ctherefore

%5Ctext%7BTotal%7D%5C%2C%5Ctext%7Bions%7D%3D1-%5Calpha%20%2B%5Calpha%20%2B%5Calpha

%3D1%2B%5Calpha

%5Ctherefore

i%3D1%2B%5Calpha

Given,

%7B%7Bk%7D_%7Bf%7D%7D%3D1.86%5C%2C%5Ctext%7BK%7D%5C%2C%5Ctext%7Bmo%7D%7B%7B%5Ctext%7Bl%7D%7D%5E%7B-1%7D%7D

mass of

%5Ctext%7B%20%7D%5C!%5C!~%5C!%5C!%5Ctext%7B%20HBr%20%3D%7D%5C%2C%5Ctext%7B8%7D%5Ctext%7B.1%20g%7D

mass of

%5Ctext%7B%20%7D%5C!%5C!~%5C!%5C!%5Ctext%7B%20%7D%7B%7B%5Ctext%7BH%7D%7D_%7B%5Ctext%7B2%7D%7D%7D%5Ctext%7BO%7D%5C%2C%5Ctext%7B%3D100%20g%7D

%5Ctext%7B(%20%7D%5C!%5C!%5Calpha%5C!%5C!%5Ctext%7B%20)%7D%5C%2C%5C%2C%5Ctext%7B%3D%7D

degree of ionization

%3D90%25

m

(molality)

%5Ctext%7B%3D%20%7D%5Cfrac%7B%5Ctext%7Bmass%7D%5C%2C%5Ctext%7Bof%7D%5C%2C%5Ctext%7Bsolute%2Fmol%7D%5Ctext%7B.wt%7D%5Ctext%7B.of%7D%5C%2C%5Ctext%7Bsolute%7D%7D%7B%5Ctext%7Bmass%20of%20solventin%20kg%7D%7D

%3D%5Cfrac%7B8.1%2F81%7D%7B100%2F1000%7D

i%3D1%2B%5Calpha

%3D1%2B90%2F100

%3D1.9

%5CDelta%20%7B%7BT%7D_%7Bf%7D%7D%3Di%5Ctimes%20%7B%7Bk%7D_%7Bf%7D%7D%5Ctimes%20m

%3D1.9%5Ctimes%201.86%5Ctimes%20%5Cfrac%7B8.1%2F81%7D%7B100%2F1000%7D

%3D3.534%7B%7B%5C%2C%7D%5E%7Bo%7D%7DC

%5CDelta%20%7B%7BT%7D_%7Bf%7D%7D%3D

(depression in freezing point) = freezing point of water - freezing point of solution 3.534 = 0-freezing point of solution

%5Ctherefore

Freezing point of solution

%3D-3.534%7B%7B%5C%2C%7D%5E%7Bo%7D%7DC

About Colligative Properties - JCECE

Colligative Properties is a vital chapter for JCECE aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

Why focus on Colligative Properties PYQs?

Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.

How to best use this analysis?

Review the topic breakdown to see which sub-topics within Colligative Properties carry the most weight. Then, tackle the questions iteratively to solidify your understanding.

High-Yield Trend

Chapter Questions
2 MCQs

Official Solution

Official Solution

About Colligative Properties - JCECE

Frequently Asked Questions

Why focus on Colligative Properties PYQs?

How to best use this analysis?

Colligative Properties

High-Yield Trend

Chapter Questions 2 MCQs

Official Solution

Official Solution

About Colligative Properties - JCECE

Frequently Asked Questions

Why focus on Colligative Properties PYQs?

How to best use this analysis?

Chapter Questions
2 MCQs