Here is the list of topic- wise tricky questions for Engineering Competitive exams formerly available on iitstuff.com .

MATHEMATICS

1. Elementary Trigonometric Function
2. Transformation Formulae
3. Trigonometric Equations
4. Properties of Triangle
5. Binomial Theorem 
6. Complex Numbers 
7. Permutations and Combination 
8. Probability 
9. Quadratic Equations 
10. Sequences and Series 
11. Exponential And Logarithmic Series
12. Straight Lines 
13. Three Dimensional Geometry 
14. Sets, Relations & Functions 

PHYSICS

1. Mathematical Tools and Vectors
2. Units and Measurement
3. Kinematics
4. Newtons Laws of Motion
5. Work, Power and Energy 
6. Properties of Bulk Matter 
7. Gravitation 
8. Oscillations 
9. Geometrical Optics 
10. Light Waves 

CHEMISTRY

1. Some Basic Concepts of Chemistry
2. Classification of Elements and Periodicity in Properties
3. Chemical Bonding and Molecular Structure
4. Chemical Equilibrium 
5. Structure of Atom 
6. Principles and Processes of Extraction of Elements
7. Hydrogen 
8. States of Matter 
9. Thermodynamics