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Contribute & Test Your Skills
- Some Basic Concepts in Chemistry
- States of Matter
- Atomic Structure
- Chemical Bonding & Molecular Structure
- Chemical Thermodynamics
- Solutions
- Equilibrium
- Redox Reactions & Electrochemistry
- Chemical Kinetics
- Surface Chemistry
- Purification & Characterisation of Organic Compounds
- Hydrocarbons
- Chemistry in Everyday Life
- Principles Related to Practical Chemistry
- Organic Compounds Containing Halogens
- Organic Compounds Containing Oxygen
- Organic Compounds Containing Nitrogen
- Alcohol, phenol & Ether
- Organic Chemistry Principles
- Biomolecules & Polymers
- Classification of Elements & Periodicity in Properties
- Hydrogen
- S & P block Element
- D & F - Block Elements
- Co-Ordination Compounds
- Environmental Chemistry
- General Principles & Processes of Isolation of Metals
- JEE Chemistry Discussions
- Aldehydes, Ketones & Carboxylic Acid
- Nuclear Chemistry
- Atom & Molecules
- Redox Reaction
- Aromatic Hydrocarbons
- Halogen Derivatives
- Carboxylic Acids & Derivatives
- Nitrogen Containing Compounds
- Bio Molecules
- Chemistry In Action
- Extraction of Metals
- Chemical Analysis
- Ores, Minerals and Metallurgical Extraction
Popular Questions
- Assertion : Cathode rays are a stream of α -particles. Reason : They are generated under high pressure and high voltage.
- The average distance of an electron in an atom from its nucleus is of the order of
- Proton was discovered by
- From the following masses, the one which is expressed nearest to the milligram is
- One would expect proton to have very large
- The total number of atomic orbitals in fourth energy level of an atom is:
- If uncertainty in position and momentum are equal, then uncertainty in velocity is:
- The nucleus of the atom consists of
- The proton and neutron are collectively called as
- Maximum number of electrons in a subshell of an atom is determined by the following:
- Which of the following statement is true
- The density of a neclear of an atom is
- The orbital angular momentum of a p-electron is given as:
- Which is correct statement about proton
- Maximum number of electrons in a subshell with:
- Which one of the following pairs is not correctly matched
- The nucleus of helium contains
- Cathode rays are made up of
- Impossible orbital among the following is
- Who discovered that cathode rays are made up of electrons
- Number of neutron in C12 is
- Ratio of masses of proton and electron is
- The nature of anode rays depends upon
- The Heaviest particle is
- Rutherford experiment prove
- Splitting of signals is caused by
- What is the ratio of mass of an electron to the mass of a proton
- Electron density in the yz plane of 3d(x^2 y^2) orbital is
- Anode rays were discovered by
- [Ar] (3d)^10, (4s)^1 electronic configuration belongs to
- Which of the following is not permissible arrangement of electrons in an atom?
- Which phrase would be incorrect to us
- Penetration power of proton is
- Cathode rays have
- The atomic number of Ni and Cu are 28 and 29 respectively. The electronic configuration (1s)^2 (2s)^2 (2p)^6 (3s)^2 (3p)^6 (3d)^10..
- Two electrons occupying the same orbital are distinguished by
- the correct set of four quantum number of the valence
- tedt
- The total number of electrons present in all the s orbitals, all the p orbitals and all the d orbitals of cesium ion are respectiv..
- Non-directional orbital is
