List of top Questions asked in Bihar Board Class XII

What is sorption? Give an example.
What is slag?
Nobel gases have comparatively large atomic radius. Why?
What are crystalline solids? Give example.
What do you understand by point defects?
What is formed when benzene reacts with ethyl bromide in the presence of anhydrous AlCl$_3$? Give equation.
What is power alcohol?
Pyrolusite is an ore of which of the following?
The process of reduction of a metal oxide by carbon or carbon monoxide to the metal is called
Cyanide process is used for the extraction of which of the following metals?
What is molal elevation constant? How is it related to molarity of a solution?
What do you understand by abnormal molecular mass?
Which of the following is used as a soap?
Which of the following is antioxidant?
The half life of a first order reaction
Which of the following catalysts is used in the manufacture of NH$_3$ by Haber’s process?
By which of the following processes colloidal sols are purified?
The highest volume of which of the following gases would be adsorbed by 1 g of charcoal at 298 K?
Saccharin is a/an
Which of the following is a member of first transition series?
Which of the following contains ester linkages?
Which of the following is a thermosetting plastic?
Which of the following is a polyamide?
Which of the following is used as an antacid?
The rate constant of a chemical reaction depends upon which of the following?