List of top Questions asked in PSEB XII- 2025

Give two differences between ideal and non-ideal solution.
Give two differences between order of reaction and molecularity of reaction.
Calculate the molal elevation constant of water, it being given that 0.1 molal aqueous solution of a substance boils at 100.052$^\circ$C.
How will you convert propan-1-ol to propan-2-ol ?
How will you obtain chlorobenzene from aniline ?
Give two differences between DNA and RNA.
Describe Rosenmund reduction.
Explain why methylamine is a stronger base than Ammonia ?
Why do alcohols have higher boiling point than haloalkanes of the same molecular mass ?
Write two differences between double salt and co-ordination compounds.
Define monodentate ligands and give example.
The porous membrane used in reverse osmosis plant is made up of :
What is DDT among the following :
In the following, strongest Acid is :
Benzioc Acid reacts with LiAlH$_4$ to give :
Vinegar is dilute aqeous solution of :
Galvanisation is applying a coating of :
The units of ebullioscopic constant is :
The units of first order reaction :
What is the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride ?
Discuss any four functions of financial manager in detail.
Describe in detail any four steps involved in communication process.
Write any four responsibilities of the consumer.
Write any four functions of packaging in detail.
Write any four limitations of planning in detail.