1

IIT-JEE 1994

Fill in the Blanks

+1

-0

The compound YBa

_{2}Cu_{3}O_{7}, which shows superconductivity, has copper in oxidation state ______ assume that the rare earth element yttrium is in its usual +3 oxidation state.2

IIT-JEE 1991

Fill in the Blanks

+1

-0

The weight of $$1 \times 10^{22}$$ molecules of CuSO

_{4}.5H_{2}O is ____.3

IIT-JEE 1983

Fill in the Blanks

+1

-0

3 g of a salt of molecular weight 30 is dissolved in 250 g of water. The molality if the solution is _____.

4

IIT-JEE 1980

Fill in the Blanks

+1

-0

The modern atomic unit is based on the mass of ______.

Questions Asked from Some Basic Concepts of Chemistry (Fill in the Blanks)

Number in Brackets after Paper Indicates No. of Questions

JEE Advanced Subjects

Physics

Mechanics

Units & Measurements Motion Laws of Motion Work Power & Energy Impulse & Momentum Rotational Motion Properties of Matter Heat and Thermodynamics Simple Harmonic Motion Waves Gravitation

Electricity

Electrostatics Current Electricity Capacitor Magnetism Electromagnetic Induction Alternating Current Electromagnetic Waves

Optics

Modern Physics

Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Structure of Atom Redox Reactions Gaseous State Chemical Equilibrium Ionic Equilibrium Solutions Thermodynamics Chemical Kinetics and Nuclear Chemistry Electrochemistry Solid State & Surface Chemistry

Inorganic Chemistry

Periodic Table & Periodicity Chemical Bonding & Molecular Structure Isolation of Elements Hydrogen s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Salt Analysis

Organic Chemistry

Mathematics

Algebra

Quadratic Equation and Inequalities Sequences and Series Mathematical Induction and Binomial Theorem Matrices and Determinants Permutations and Combinations Probability Vector Algebra 3D Geometry Statistics Complex Numbers

Trigonometry

Coordinate Geometry

Calculus