List of top Chemistry Questions

Non-electrolyte is:
Differentiate between coordination compound and double salt.
State Hardy–Schulze law.
State anti-osmosis with example.
Molecular formula of sulphur at ordinary temperature is:
Gas present in food packet of substances is:
The charge on colloidal particles of Fe\(_2\)O\(_3 \cdot xH_2O\) is:
Structure of the crystal of sodium chloride is:
Explain why NH$_3$ is basic in nature.
Discuss the mechanism of unimolecular and bimolecular nucleophilic substitution reactions in haloalkanes.
Describe Ostwald’s process for the industrial manufacture of nitric acid. Write the balanced chemical equations of the following reactions: (i) Zinc metal reacts with conc. HNO$_3$
(ii) Iodine reacts with conc. HNO$_3$
Give reason that bleaching action of chlorine is permanent while that of SO$_2$ is temporary.
What happens when Sulphur dioxide reacts with acidic potassium permanganate? Write balanced chemical equation for this reaction.
Write short notes on the following: (A) Reimer–Tiemann Reaction
(B) Kolbe’s Reaction
(C) Williamson Ether Synthesis
Write the mechanism of dehydration of ethanol.
Explain Werner’s postulates related to the bonding in coordination compounds.
What do you mean by D and L configurations of carbohydrates? Draw the structural formula of D-Glucose and D-Fructose.
Write a short note on Coagulation.
Write a short note on Gabriel’s phthalimide synthesis. Why is Gabriel’s phthalimide synthesis preferred for synthesizing the primary amines?
Zn$^{2+}$ salts are colourless while Ni$^{2+}$ salts are coloured. Why?
What is half-life for a chemical reaction? Show that the half-life for a first order reaction is independent of the initial concentration of the reactants.
‘Action of soap is based on the emulsification and micelle formation.’ Comment on it.
Explain Kohlrausch’s law of independent migration of ions. Mention one application of this law.
$H_2O$ is a liquid while $H_2S$ is a gas. Why?
Define Lyophilic and Lyophobic colloids with examples. Why is Lyophobic colloids easily coagulated?