List of top Questions asked in Bihar Board Class XII

What are the importances of salt bridge in an electrochemical cell?
Arabica is associated with
Hirakud project is in
The direction of flow of Luni river is
Which of the following rivers is the most polluted?
In which state is Panipat oil refinery centre located?
In which of the following states is Narora atomic power centre located?
Why is nitrogen molecule less reactive?
Explain Raoult’s law. How would you distinguish between ideal and non-ideal solutions on its basis?
What do you understand by concentration of an ore? Discuss the different methods of concentration of ores.
Differentiate between Methanoic acid and Ethanoic acid.
Write IUPAC names of the following compounds:
What are carbohydrates? How are they classified?
Differentiate between DNA and RNA.
What are nucleic acids?
Differentiate between Electrochemical cell and Electrolytic cell.
Write Arrhenius equation.
How would you prepare ethane from methyl iodide?
How would you prepare iodoform from acetylene?
Why is PCl\(_5\) a known compound, but NCl\(_3\) is not?
Why are alcohols more soluble in water than alkanes of the same molecular weight?
What do you understand by elevation of boiling point?
What happens when n-butyl chloride reacts with alcoholic KOH?
Distinguish between Alcohol and Phenol.
What is metamerism?