List of top Questions asked in Maharashtra Class XII

Convert, acetamide into ethyl amine.
Write two similarities and two differences between lanthanoids and actinoids.
What is the action of following reagents on chlorobenzene? (i) conc. $HNO_3$, (ii) fuming $H_2SO_4$
Explain Cannizzaro reaction with suitable example.
Write example of one dimensional nanostructure of size less than 100 nm.
Write the hydrolysis reaction of ethyl methyl ether.
Calculate the osmotic pressure of solution containing 0.822 gm of sucrose in 300 mL of water at 298 K. [ Given : Molar mass of sucrose 342 g/mol, R = 0.08205 $dm^3$ atm $K^{-1}$ $mol^{-1}$ ]
Write the mathematical equation of first law of thermodynamics for following processes : (a) Isochoric process, (b) Adiabatic process
Explain the trends in the following properties of group 17 elements : Electronegativity
Explain Homoleptic and Heteroleptic complexes with example.
Write the reaction of bromine water on glucose.
Define -- Enantiomers
Define : Isomorphism
Define : Unit Cell
Explain the trends in the following properties of group 17 elements : Atomic radii
Write the IUPAC name of :
Copper has fcc structure with edge length 495 pm. What is the radius of copper atom in pm?
Write the chemical name of Teflon.
Write the name of nanoparticle which acts as highly effective bacterial disinfectant.
Write the SI unit of cell constant.
Write the name of radioactive element in lanthanide series.
Complete the following reaction :
Write the name of product obtained, when selenium is treated with magnesium metal.
The co-ordination complex ions $[Co(NH_3)_5(NO_2)]^{2+}$ and $[Co(NH_3)_5(ONO)]^{2+}$ are ________ of each other.
The correct order for basic strength of amines and ammonia is ________.