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Chemistry
List of top Chemistry Questions
A weak monobasic acid is 10 percent dissociated in 0.05 M solution. What is percent dissociation in 0.15 M solution?
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Ionic equilibria in solution
Draw structures of the following compounds:
i.
Chloric acid
ii.
Peroxydisulphuric acid
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
p -Block Elements
Define Osmosis. How will you determine molar mass of non-volatile solute by elevation of boiling point?
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Solutions
2000 mmol of an ideal gas expanded isothermally and reversibly from 20 L to 30 L at 300 K, calculate the work done in the process (\( R = 8.314 \, \text{J K}^{-1} \text{mol}^{-1} \)).
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Thermodynamics
Define: Green chemistry. Write two advantages of nanoparticle and nanotechnology.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
GREEN CHEMISTRY
Write the chemical reactions for the following:
i.
Chlorobenzene is heated with fuming H\(_2\)SO\(_4\)
ii.
Ethyl bromide is heated with silver acetate
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Haloalkanes and Haloarenes
Explain the following terms:
i.
Substitutional impurity defect
ii.
Interstitial impurity defect
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Solid State
Define: Acidic buffer solution. Write the relationship between solubility and solubility product for PbI\(_2\).
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Thermodynamics
What is the action of the following reagents on ethyl amine:
i.
Chloroform and caustic potash
ii.
Nitrous acid
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Amines
Write chemical reaction for the preparation of glucose from sucrose. Write structure of D-ribose.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Biomolecules
Calculate the mole fraction of solute, if the vapour pressure of pure benzene at certain temperature is 640 mmHg and vapour pressure of solution of a solute in benzene is 600 mmHg.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Solutions
Write the structure of the product formed when chlorobenzene is treated with sodium metal in the presence of dry ether.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Haloalkanes and Haloarenes
Distinguish between lanthanides and actinides.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
d -and f -Block Elements
Calculate molar conductivity for 0.5 M BaCl\(_2\) if its conductivity at 298K is 0.01 \( \Omega^{-1} \text{cm}^{-1} \).
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Electrochemistry
Write the name of the technique used to know geometry of nanoparticles.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
GREEN CHEMISTRY
Write the correct condition for spontaneity in terms of Gibbs energy.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Thermodynamics
Write the chemical composition of cryolite.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Electrochemistry
Write the name of platinum complex used in the treatment of cancer.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Coordination Compounds
Write the name of the product formed by the action of LiAlH4/ether on acetamide.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Amines
The spin only magnetic moment of Mn\(^{2+}\) ion is _______.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Coordination Compounds
The product of following reaction is
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Organic Reactions
The monomer of natural rubber is _______.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Polymers
Ozonolysis of 2,3-dimethyl but-2-ene, followed by decomposition by Zn dust and water gives _______.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Hydrocarbons
The allylic halide, among the following is _______.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Haloalkanes and Haloarenes
The correct formula of a complex having IUPAC name Tetraamminedibromoplatinum (IV) bromide is _______.
Maharashtra Class XII - 2023
Maharashtra Class XII
Chemistry
Coordination Compounds
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