Maharashtra Board Class 12 Chemistry (S) Question Paper 2026 with Solution Pdf (Available Soon)
| Updated On - Feb 20, 2026
The Maharashtra Board 2026 Class 12 Chemistry (S) Question Paper with Solution PDF is available here for download. The Chemistry (S) exam is scheduled to be held on 18th February, 2026 in the Morning Session from 11:00 AM to 2:00 PM.
The Maharashtra Board Class 12 Chemistry (S) exam 2026 was be a 70 mark written, offline paper comprising approximately 25% objective and 75% descriptive (short, long, essay-type).
Maharashtra Board Class 12 Chemistry (S) Question Paper 2026 with Solution PDF
| Maharashtra Board Class 12 Chemistry (S) Question Paper 2026 | Download PDF | Check Solutions |
The electrolyte used in \(H_2 - O_2\) fuel cell is ______.
The oxidation state of bromine in \(HOBrO_2\) oxoacid is ______.
Acetonitrile may be prepared by heating the following reactants:
The carbonated water is an example of ______.
The unit of rate constant is per second, the order of reaction is \textendash
A system releases \(10 kJ\) of heat and performs \(15 kJ\) of work on the surrounding. Hence the change in internal energy is :
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 ______.
Amongst the following \(3d\)-series elements, having highest value of first ionization enthalpy is ______.
The \(pOH\) of \(0.01 M HCl\) solution is ______.
Write the name of product obtained, when selenium is treated with magnesium metal.
Write the SI unit of cell constant.
Complete the following reaction :
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.
Define Isomorphism.
Define Unit Cell.
Explain the trends in atomic radii of group 17 elements.
Explain the trends in electronegativity of group 17 elements.
Explain Homoleptic and Heteroleptic complexes with example.
Write the reaction of bromine water on glucose.
Define Enantiomers
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 : Isochoric process
Write the mathematical equation of first law of thermodynamics for following processes : Adiabatic process
Write two similarities and two differences between lanthanoids and actinoids.
What is the action of conc. \(HNO_3\) on chlorobenzene?
What is the action of fuming \(H_2SO_4\) on chlorobenzene?
Explain Cannizzaro reaction with suitable example.
A chemical reaction occurs in two steps :
(i) \(NO_2Cl(g) \xrightarrow{slow} NO_2(g) + Cl(g)\)
(ii) \(NO_2Cl(g) + Cl(g) \xrightarrow{fast} NO_2(g) + Cl_2(g)\)
(a) Write down the rate law.
(b) Identify the reaction intermediate.
The standard potential of electrode \(Cu^{2+}(0.02 M) | Cu(s)\) is \(0.337 volt\). Calculate its potential in volt.
Derive relationship between relative lowering of vapour pressure and molar mass of non volatile solute.
Write statement of second law of thermodynamics.
Convert acetamide into ethyl amine.
Explain amphoteric nature of water.
Convert Ethanol into sodium ethoxide.
Convert Phenol into o-phenol sulfonic acid.
Convert Bromomethane into methoxyethane.
What is peptide linkage?
Write general characteristics of interhalogen compounds.
Write observed electronic configuration of chromium (\(Z = 24\)).
Calculate magnetic moment of \(Ti^{3+}\) by using spin only formula. (\(Z\) of \(Ti = 22\))
Define Green chemistry.
Calculate the work done in oxidation of 2 moles of \(SO_2\) at \(298 K\), if \(SO_{2(g)} + \frac{1}{2}O_{2(g)} \rightarrow SO_{3(g)}\). [Given : \(R = 8.314 J/K mol\)]
Write the formula to measure % atom economy according to green chemistry.
Convert Benzene into benzaldehyde.
Convert Cyclohexene into adipic acid.
Write a reaction for preparation of Nylon-6.
The salt of \(Sc^{3+}\) ion is colourless and the salt of \(Mn^{3+}\) ion is coloured. Explain. [\(Z\) of \(Sc = 21\) and \(Z\) of \(Mn = 25\)]
Write the postulates of Werner's theory of co-ordination complexes.
What is the action of ethane-1,2-diol on acetone?
Write Tollen's reagent test for acetaldehyde.
Write the structure of zwitter ion of sulfanilic acid.
Write the reaction between benzene diazonium chloride and phenol in alkaline medium.
Define Common ion effect.
Write preparation of glucose from starch.
Draw the structure of 2, 4 \textendash\ dinitrophenylhydrazone of acetaldehyde.
The rate of \(A + B \rightarrow P\) is \(3.6 \times 10^{-2} mol/dm^3/s\). When \([A] = 0.2 M\) and \([B] = 0.1 M\). Calculate the rate constant if reaction is first order in \(B\) and second order in \(A\).
Define Isotonic solution.
Define Molecularity of reaction.
State and explain Hess's law of constant heat summation.
Define Schottky defect.
Define Ferromagnetism.
Write the name of catalyst used in preparation of HDP.
Draw structure of isoprene unit of natural rubber.
Calculate effective atomic number of \(Fe^{2+}\) in \([Fe(CN)_6]^{4-}\). [Given : (\(Z = 26\))]
Draw neat and labelled diagram of lead accumulator.
Write two advantages of hydrogen \textendash\ oxygen fuel cell.
Convert ethanoic acid into ethanol.
Explain the mechanism of alkaline hydrolysis of bromomethane.
Acetic acid is 5% ionised in its decimolar solution. Calculate the dissociation constant of acetic acid.
Write chemical formula of epsom salt. Give two uses of \(H_2SO_4\).
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