List of top Chemistry Questions asked in MPBSE Class XII Board

What is Lanthanoid Contraction? State its consequences.
Contrast DNA and RNA or Globular and Fibrous Proteins.
Show how to convert substances like Benzene to Aniline or Phthalimide to N-alkyl phthalimide.
Provide chemical equations for reactions such as Aldol Condensation, Cross Aldol Condensation, Wurtz Reaction, Fittig Reaction, and Hoffmann Bromamide Reaction.
Explain why Scandium (Z=21) is a transition element while Zinc (Z=30) is not.
Why do transition elements (d-block) show variable oxidation states and magnetic properties?
Define Specific Conductivity and Cell Constant, including their units.
Differentiate between the Order of Reaction and Molecularity.
Describe the Standard Hydrogen Electrode (SHE) with a labeled diagram and its cell reaction.
State Henry’s Law regarding the solubility of gases in liquids and mention two daily-life applications.
Calculate the mass percentage of benzene if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.
Acetylation of salicylic acid produces:
Total number of elements are in d-block is __________.
For a chemical reaction with rise in temperature by \(10^\circ C\) the rate constant is nearly:
How much charge is required for the 1 mol \( \mathrm{Al^{3+}} \) to Al?
The pressure of solution that just prevents the flow of solvent is called: