1
VITEEE 2025
MCQ (Single Correct Answer)
+4
-1

When $\mathrm{H}_2 \mathrm{O}_2$ is added to a solution of acidified sodium dichromate, a deep blue colour is observed due to the formation of a peroxo complex. This change signifies that

A

dichromate ion is oxidised.

B

hydrogen peroxide is reduced.

C

oxidation state of Cr remains same.

D

hydrogen peroxide acts as an oxidising agent.

2
VITEEE 2023
MCQ (Single Correct Answer)
+4
-1

In context of the lanthanoides, which of the following statements is not correct?

A
14 elements in the sixth period (atomic number $$=58$$ to 71 ) that are filling $$4 f$$-sublevel.
B
common oxidation state is +3 .
C
Availability of $$4 f$$-electrons results in the formation of compounds in +4 state for all numbers of the series.
D
There is a gradual decrease in the of the elements with increasing atomic numbers in the series.
3
VITEEE 2022
MCQ (Single Correct Answer)
+4
-1

Which of the following lanthanides are used in TV screens?

A
Eu
B
Ce
C
Tb
D
Dy

VITEEE Subjects

Browse all chapters by subject

Physics
Mechanics
Units & Measurement and Dimensions Vector Algebra Motion Laws of Motion Circular Motion Work, Energy and Power Center of Mass and Collision Rotational Motion Gravitation Simple Harmonic Motion Fluid Mechanics Elasticity Waves Heat and Thermodynamics
Optics
Ray Optics Wave Optics
Electromagnetism
Current Electricity Alternating Current Electromagnetic Induction Electrostatics Magnetism and Matter Electromagnetic Waves Capacitor Moving Charges and Magnetism
Modern Physics
Dual Nature of Radiation Atoms and Nuclei Semiconductor Devices and Logic Gates Communication Systems
Chemistry
Physical Chemistry
Some Basic Concepts of Chemistry Atomic Structure Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics Nuclear Chemistry
Inorganic Chemistry
d and f Block Elements p-Block Elements Metallurgy Chemical Bonding and Molecular Structure s-Block Elements Periodic Table and Periodicity Environmental Chemistry Coordination Compounds
Organic Chemistry
Compounds Containing Nitrogen Biomolecules Carboxylic Acids and Its Derivatives Polymers General Organic Chemistry Hydrocarbons Isomerism Alcohol, Phenols and Ethers Chemistry in Everyday Life Practical Organic Chemistry Haloalkanes and Haloarenes Aldehyde and Ketone
Mathematics
Algebra
Sets and Relations Logarithms Binomial Theorem Permutations and Combinations Sequences and Series Probability Vector Algebra Quadratic Equations Mathematical Reasoning Three Dimensional Geometry Matrices and Determinants Complex Numbers
Trigonometry
Properties of Triangles Inverse Trigonometric Functions Trigonometric Ratios & Identities Trigonometric Equations
Calculus
Functions Indefinite Integration Definite Integration Differential Equations Area Under The Curves Application of Derivatives Limits, Continuity and Differentiability Differentiation
Coordinate Geometry
Ellipse Hyperbola Parabola Straight Lines and Pair of Straight Lines Circle
Aptitude
Coding and Decoding Number Series Syllogism Data Sufficiency Data Interpretation Analogy Classification Series Completion Blood Relations Logical Deduction
English
Comprehension Ability Fill in the Blanks Vocabulary
EXAM MAP

Browse past year questions by exam & subject

Joint Entrance Examination
JEE Main JEE Advanced MHT CET BITSAT COMEDK WB JEE KCET VITEEE AP EAPCET TS EAMCET IAT (IISER)
Medical
NEET AIIMS MHT CET (Biology)
Graduate Aptitude Test in Engineering
GATE CSE GATE ECE GATE EE GATE ME GATE CE GATE PI GATE IN GATE Data Science and Artificial Intelligence
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12