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 : Effusion rate of oxygen is smaller than nitrogen. Reason : Molecular size of nitrogen is smaller than oxygen.
- A weather ballon filled with hydrogen at 1 atm and 27° C has volume equal to 12000 litres. On ascending it reaches a place wher..
- A particular solid is very hard and has a high melting point. In solid state it is a non conductor and its melt is a conductor of ..
- The characteristic features of solid are
- Assertion : We air is heavier than dry air. Reason : The density of a dry air is more than density of water.
- Assertion : 4.58mm and 0.0098°C is known to be triple point of water. Reason : At this pressure and temperature all the three s..
- Assertion : All molecules in a gas have same speed. Reason : Gas contains of different size and shape
- Which one of the following is good conductor of electricity
- Molecules/ions and their magnetic properties are given below
- A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely dis..
- Which one of the following Statements is not correct about the three states of matter i.e. solid, liquid and gaseous
- The root mean square speeds at STP for the gases H2 , N2 ,O2 and HBr are in the order
- Davy and Faraday proved that
- At constant temperature,in a given mass of an ideal gas
- A crystalline solid have
- Dulong and Petits law is valid only for
- If the pressure and absolute temperature of 2 litres of CO2 are doubled, the volume of CO2 would become
- Which one of the following metal oxides is antiferromagnetic in nature
- The temperature and pressure at which ice, liquid water and water vapour can exist together are
- Pressure remaining the same, the volume of a given mass of an ideal gas increases for every degree centigrade rise in temperature ..
- A crystalline solid
- Which of the following relations for expressing volume of a sample is not correct
- Quartz is are crystalline variety of
- A compound is formed by elements A and B. This crystallises in the cubic structure where the A atoms are at the corners of the cub..
- Crystalline solids are
- Pressure of a gas in a vessel can be measured by
- A volume of 1 m3 is equal to
- The number of carbon atoms per unit cell of diamond is
- The ability of a given substance to assume two or more crystalline structure is called
- Among solids the highest melting point is established by
- Which of the following is ferroelectric compound
- The substance which does not show sharp melting point is
- The 8 : 8 type of packing is present in
- Correct gas equation is
- Which type of solid crystals will conduct heat and electricity
- Silicon is
- To get a n-type semiconductor, the impurity to be added to silicon should have which of the following number of valence electrons ..
- Kinetic energy of molecules is highest in
- With which one of the following elements silicon should be doped so as to give p-type of semiconductor
- Which of the following statements is wrong for gases
