List of top Chemistry Questions asked in Bihar Board Class XII

What are the importances of salt bridge in an electrochemical cell?
What are carbohydrates? How are they classified?
Explain Raoult’s law. How would you distinguish between ideal and non-ideal solutions on its basis?
Write IUPAC names of the following compounds:
Why is nitrogen molecule less reactive?
Differentiate between Electrochemical cell and Electrolytic cell.
What do you understand by concentration of an ore? Discuss the different methods of concentration of ores.
Differentiate between Methanoic acid and Ethanoic acid.
Differentiate between DNA and RNA.
What are nucleic acids?
Why is PCl\(_5\) a known compound, but NCl\(_3\) is not?
What do you understand by elevation of boiling point?
What happens when n-butyl chloride reacts with alcoholic KOH?
Write Arrhenius equation.
How would you prepare iodoform from acetylene?
How would you prepare ethane from methyl iodide?
Distinguish between Alcohol and Phenol.
Why are alcohols more soluble in water than alkanes of the same molecular weight?
Why is ethyl alcohol not dried by anhydrous CaCl2?
Write Faraday’s 2nd law of Electrolysis.
What are chiral and achiral compounds?
What are macromolecules?
"(\(O_3\))behaves as a strong oxidising agent." Explain.
What is slag?
Write the IUPAC name of complex compound \( K_3[Cr(C_2O_4)_3] \).