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
- Caffeine has a molecular weight of 194. If it contains 28.9% by mass of nitrogen, number of atoms of nitrogen in one molecule of c..
- The number of oxygen atoms in 4.4 g of CO2 is
- Number of atoms in 558.5g Fe (At. wt. 55.85) is
- An element, x has the following isotopic composition l.
- What is the mass of precipitate formed when 50 mL of 16.9 % solution of AgNO3 is mixed with 50 mL of 5.8% NaCI solution?
- The number of oxygen atoms 4.4g of CO2 is
- 0.75g plantic chloride, a monoacid base on ignition gave 0.245g plantinum. The molecular weight of the base is
- What is the concentration of nitrate ions if equal volumes of o.1 M AgNO3 and 0.1 M NaCI are mixed together
- 74.5g of a metallic chloride contain 35.5 g of chlorine The equivalent weight of the metal is
- How many significant digits are there in 0.5?
- 2.76 g of silver carbonate on being strongly heated yields a residue weighing
- If Na is avogadros number then number of valence electrons in 4.2 g of nitride icons N^3_ is
- a gaseous hydrocarbon gives upon combustion, 0.72 g
- In an experiment it showed that 10 ml of 0.05 M solution of chloride required 10 ml of 0.1 M solution of AgNO3, which of the follo..
- Number of moles of MnO4 required to oxidize one mole of ferrous oxalate completely in acidic medium will be :
- The number of stereoisomers obtained by bromination of trans-2-butene is
- the density of a solution presented by dissolving 120 g of urea
- The correct order for homolytic bond dissociation energies (AH in kcal/mol) for CH4 (A), C2 H6 (B) and CH3 Br (C), under identical..
- The molecular weight of O2 and SO2 and 32 and 64 respectively. At 15 degree C and 150 mm Hg pressure, one litre of O2 contains N m..
- Boron has two stable isotopes, 10 B (19%) and 11 B(18%). Average atomic weight for boron in the periodic table is
- Chlorobenzene is o, p -directing in electrophilic substitution reaction. The directing influence is explained by
- The weight of a molecule of the compound C60 H1 22 is
- The same amount of zinc is treated separately with excess of sulphuric acid and excess of solution hydroxide. What will be the rat..
- Density of a 2.05 M solution of acetic acid water is 1.02
- 1 L oxygen gas at STP will weigh
- arrange the carbanions, (CH3)3 C, CCI3,
- An element, X has the following isotopic composition: 200X:90%, 190X:8.0%, 202X:2.0%
- Identify, which of the below does not possess any element of symmetry ?
- Which kind of fission is favoured by sunlight?
- Which is the most stable carbocation?
- The maximum number of molecules is present in
- The maximum number of possible optical isomers in 1-bromo-2-methyl cyclobutane is
- Haemoglobin contains 0.334 % of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron ato..
- The state of hybridization of C2, C3, C5 and C6 of the hydrocarbon,
- The drug which is used for treating AIDS victims is
- The reaction intermediate produced by homolytic cleavage of a bond is called
- Least stable conformer of cyclohexane is
- Geometry of methyl free radical is
- Which one of the following shows functional isomerism ?
