>
Chemistry
List of top Chemistry Questions
Determine the presence of nitrogen atom in the given organic compound O₃.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Nitrogen
Determine the molarity of the given KMnO$_4$ solution with the help of supplied oxalic acid solution by volumetric analysis method.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Redox Reactions
Determine the molarity of the given KMnO$_4$ solution with the help of supplied Mohr's salt solution by titration method.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Redox Reactions
“Formic acid behaves both as an aldehyde and an acid.” Explain.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Carboxylic Acids
Determine the molarity of HCl solution with the help of supplied NaOH solution by volumetric analysis method.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Acid-base titrations
How would you distinguish between the following compounds by chemical tests?
(i) Formaldehyde and Acetaldehyde
(ii) Acetaldehyde and Acetone
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Aldehydes And Ketones
What is electrochemical cell? Explain the structure of an electrochemical cell.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Electrochemistry
Explain the principle of manufacturing sulphuric acid by contact process.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Acids and Bases
Write the reaction of conc. sulphuric acid with oxalic acid.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Acids and Bases
What is the effect of temperature on reaction rate? What is Arrhenius equation?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Chemical Kinetics
What are isotonic solutions?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Colligative Properties
How are metals refined by Bessemerisation?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Metallurgy
What is soap? How does it act in cleansing clothes?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
soaps
“Compounds of transition elements are paramagnetic and coloured.” Explain.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
General Chemistry
What is denaturation of proteins?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Biomolecules
Arrange NH$_3$, C$_2$H$_5$NH$_2$, (C$_2$H$_5$)$_2$NH and (C$_2$H$_5$)$_3$N in the increasing order of their basic strength.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Amines
Explain the difference between a double salt and a complex salt.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
coordination compounds
Give two examples of synthetic rubber.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Polymers
What are the important oxidation states of lanthanide elements?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Inorganic chemistry
What are preservatives?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
General Chemistry
Give an example of a solution of a gas in solid.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
The solid state
What do you understand by point defects?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
The solid state
What is power alcohol?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Inorganic chemistry
What is peptization?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Colloids
What are crystalline solids? Give example.
Bihar Board XII - 2023
Bihar Board XII
Chemistry
The solid state
Prev
1
...
290
291
292
293
294
...
1020
Next