List of top Chemistry Questions

Define osmotic pressure. Why is measurement of osmotic pressure method preferred for the determination of molar masses of macromolecules such as proteins and polymers?
Differentiate between: (i) Double salt and Complex compound.(ii) Didentate ligand and Ambidentate ligand.
How do you explain the following?
(a) Presence of an aldehydic group in glucose.
(b) Presence of five −OH groups in glucose.
Assertion (A): The bond angle C-O-C in ethers is slightly greater than tetrahedral angle. Reason (R): This is because of the repulsive interaction between the two bulky alkyl groups.
In the Arrhenius equation \( k = Ae^{-E_a/RT} \), ‘A’ represents:
\(\alpha\)-D-glucose and \(\beta\)-D-glucose differ from each other with respect to the:
The primary and secondary valences of Co in [Co(en)₃]Cl₃ respectively are:
Assertion (A): Actinoid contraction is greater from element to element than lanthanoid contraction. Reason (R): Actinoids show wide range of oxidation states.
Assertion (A): Molecularity of reaction is determined experimentally. Reason (R): Molecularity is applicable only for an elementary reaction and not for a complex reaction.
Assertion (A): Boiling point of (C6H5)2NH is lower than that of n-C4H9NH2. Reason (R): Hydrogen bonding is much more extensive in (C6H5)2NH as compared to n- C4H9NH2.
Which of the following complexes show linkage isomerism?
The strongest base in aqueous solution among the following amines is:
On mixing 30 mL of acetone with 20 mL of chloroform, the total volume of solution is:
We cannot measure the resistance of an ionic solution using DC because:
Which of the following transition metals has the highest melting point?
Which reagents are required for one step conversion of Chlorobenzene to Diphenyl?
A galvanic cell can behave like an electrolytic cell when
State Raoult’s law for a solution containing volatile components. Why is the vapour pressure of an aqueous solution of glucose lower than that of water?
The value of rate constant for a pseudo first order reaction:
Furanose ring of fructose is formed due to reaction between :
Answer the following about the complex \([Ti(H_2O)_6]^{3+}\):
(i) What happens to the colour of complex \([Ti(H_2O)_6]^{3+}\) when heated gradually?
(ii) Write the electronic configuration for \(d^5\) ion if \(\Delta_0<P\).
(iii) Write the hybridization and magnetic behaviour of the complex \([Ni(CO)_4]\).
During dehydration of alcohol to alkene by heating with conc. H\(_2\)SO\(_4\), the initiation step is:
How can you obtain the following from aniline? Give only chemical equations.
Draw the structures of the major monohalo products in each of the following reactions:
structures of the major monohalo products
A solution of acetone in chloroform: