List of top Chemistry Questions

Hydrogen atom of chloroform is acidic in nature.

Which of the following compounds can be coloured?

Explain Raoult's Law. The vapour pressure of chloroform (\( \text{CHCl}_3 \)) and dichloromethane (\( \text{CH}_2\text{Cl}_2 \)) are 200 mm Hg and 4.5 mm Hg respectively at 298 K. Calculate the vapour pressure of the solution formed by mixing 51 g of \( \text{CHCl}_3 \) and 20 g of \( \text{CH}_2\text{Cl}_2 \) at 298 K.

Match each complex to its geometry:

Which of these separation technique pairs is correctly matched?

Which aniline derivative is a commonly used dental local anaesthetic?

Pick the reaction that shows the Gattermann-Koch process:

Highest oxidation numbers for chromium and manganese:

Which ligand is stronger based on the spectrochemical series?

When phenol is treated with NaOH, CO_2 (heat), and then acidified, what results?

If a compound has octahedral geometry, what is the central atom’s hybridization?

Which metal reacts most with dilute acid to displace hydrogen?

Which element releases electrons most easily (lowest ionization enthalpy)?

What is the bond order for diatomic carbon according to molecular orbital theory?

Choose the correct ascending order of ionization energy for Zn, Cu, Ag:

Which compound’s common name is cumene?

Rank elements Li, Be, B, C in increasing first ionization energy:

For a proton and electron both with the same kinetic energy, what is the ratio of their de Broglie wavelengths?

Evaluate these statements about transition metals:

Match each type of reduction to its reagent:

If the rate constant is measured in per second, which reaction order does this indicate?

Which statement correctly contrasts Clemmensen and Wolff-Kishner reductions?