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
- For a first order reaction the ratio of times to complete 99.9 per. and half of the reaction is
- A first order reaction is 60 per complete in 20 min. How long will the reaction take to be 84 per complete?
- The rate of a reaction that not involve gases is not dependent on
- A first order reaction is 10per complete in 20 min. The time taken for 19er completion is
- In a chemical reaction, two reactants take part. The rate of reaction is directly proportional to the concentration of one of them..
- A reaction proceeds by first order, 75 per of this reaction was completed in 32 min. The time required for 50 per completion is
- If doubling the concentration of a reactant A increases the rate 4 times and tripling the concentration of A increase the rate 9 t..
- For a reaction, the rate constant is 2.34 s^-1. The half-life period for the reaction is
- In the first order reaction, the concentration of the reactants is reduced to 25 per in one hour. The half-life period of the reac..
- The rate of a chemical reaction
- The half-life of a reaction is halved as the initial concentration of the reactant is doubled. The order of the reaction is
- If the rate of reaction A --> B doubles on increasing the concentration of A by 4 times, the order of the reaction is
- By increase in temperature by 10 K, the rate of reaction becomes double. How many times the rate of reaction will be if the temper..
- 1/[A]^2 versus time is straight line. Order of reaction is
- For the equilibrium. If the ratio of the activation
- The rate of which a substance reacts depends on its
- In the synthesis of ammonia by Haber process, if 60 moles of amonia is obtained in one hour, then the rate of disappearance of Nit..
- Which of the following statement is false in relation to enzyme
- Which increases on increase of temperature ?
- the following mechanism has been processed for the reaction of
- For which order half-life period is independent of initial concentration ?
- A catalyst increases the rate of a chemical reaction by
- Velocity constant of a reaction at 290 K was found to be 3.2*10-3. At 310 K it will be about
- For given a reaction 3A + B -> C + D the rate of reaction can be represented by
- Inversion of cane-sugar in dilute acid is a
- For a first order reaction with rate constant k and initial concentration a , the half-life period is given by
- 1A gaseous hypothetical chemical equation 2A-- 4B+C is carried out in a closed vessel. The concentration of B is found to increase..
- The unit of second order reaction rate constant is
- With increase in temperature, rate of reaction
- In the reaction CL2 + CH4 hv__> CH3CL + HCL, presence of a small amount of oxygen
- In a reaction, A+B -> C, the rate of expression is R = K[A][B]2. If the concentration of both the reactants is doubled at constant..
- The initial rates of reaction 3A+2B+C -- Products, at different initial concentrations are given below
- Activation energy of a reaction
- Unit of frequency factor (A) is
- The initial rate, -d[A]/dt at t = 0 was found to be 2.6*10-2 mol L-1s-1 for the reaction A+2B --> Products,The inicial rate, -d[B]..
- The minimum energy required for the reacting molecules to undergo reaction is
- The rate of reaction 2N2O5 - 4NO2+O2 can be written in three ways
- Rate of reaction depends upon
- In the reaction 2A+B -- A2B, if the concentration of A is doubled and B is halved, then the rate of reaction will
- The bromination of acetone that occurs in acid solution is represented by this equation. CH3CHOCH3(aq) + Br2(aq)-- ch3coch2br(aq)+..
