List of top Chemistry Questions

What do you understand by order of a reaction? Calculate the total order of those reactions which have velocity equations:
(i) Velocity \( = K[A]^{1/2}[B]^{3/2} \)
(ii) Velocity \( = K[A]^3[B]^{-1} \)
Transition metals generally form coloured compounds.
Give the name of two water-soluble vitamins and diseases due to deficiency of them.
Differentiate between the following:
(i) Propanal and Propanone,
(ii) Phenol and Benzoic acid.
The resistance of a column formed by a 0.10 mol L^{-1} concentrated solution is 6.5 × 10^3 ohm. Its diameter is 1 cm and length is 50 cm. Calculate its resistivity, conductivity and molar conductivity.
Alcohols are more soluble in water in comparison to hydrocarbons of comparable molecular weight. Explain.
Explain the following reactions with suitable chemical equations:
(i) Wurtz reaction
(ii) Wurtz-Fittig reaction
How many oxidation states are exhibited by lanthanides?
Show the geometrical isomers of \([Fe(NH_3)_2(CN)_4]\).
Why is there always a decreasing tendency of solubility of gases in liquid on rising temperature?
Calculate molality of a solution of 5.0 g of ethanoic acid (CH}_3\textbf{COOH) in 150.0 g of benzene.
Reagent, which do not react with acetone and benzaldehyde:
How many ions will be generated from the solution of the complex \( [Co(NH_3)_6]Cl_2 \)?
Magnetic moment of a bivalent ion in aqueous solution will be, if its atomic number is 25:
Give an example of such solid solution in which solute is gas.
What is the molar mass of a gas, if 2.5 g of the gas occupies 1.12 L at STP?
Write short notes on the following: Coupling reaction:
Write the chemical equation for the preparation of Aniline and write the chemical equation of its reaction with the following:
Write chemical equations for obtaining carboxylic acid from the following:
Explain the mechanism of the reaction of diethyl ether with HI.
Write the chemical equation for the preparation of acetaldehyde and write a note on Aldol condensation and cross-Aldol condensation.
Write notes on the following: Mechanism of esterification of carboxylic acid:
Write IUPAC names of the following:
How may the following be obtained?
Explain the mechanism of dehydration of alcohol.