List of top Questions asked in Bihar Board Class XII

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?
The important oxide ore of iron is
In which of the following is the oxidation state of oxygen \(+2\)?
Which of the following is a radioactive noble gas?
By which of the following noble gases have the maximum number of compounds been formed?
Which of the following is a polar compound?
Which of the following conducts electricity in a solution?
The standard electrode potentials of metals A, B, C and D are $-3.05\,\mathrm{V}$, $-1.66\,\mathrm{V}$, $-0.40\,\mathrm{V}$ and $+0.8\,\mathrm{V}$ respectively. Which of the following would have the highest reducing power?
The cell constant of a conductivity cell is
The rate of the reaction $2A + B \rightarrow C$ can be represented by which of the following?