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Chemistry
List of top Chemistry Questions
Which of the following contains ester linkages?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Polymers
Which of the following is a polyamide?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Polymers
Which of the following is a member of first transition series?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
General Chemistry
Which of the following is used as an antacid?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
General Chemistry
By which of the following noble gases have the maximum number of compounds been formed?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Group 18 Elements (Noble Gases)
Which of the following is a polar compound?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Chemical bonding and molecular structure
In which of the following is the oxidation state of oxygen \(+2\)?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Redox Reactions
Which of the following is a radioactive noble gas?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Group 18 Elements (Noble Gases)
The important oxide ore of iron is
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Metallurgy
The rate constant of a chemical reaction depends upon which of the following?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Chemical Kinetics
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?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Electrochemistry
The cell constant of a conductivity cell is
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Electrochemistry
Which of the following conducts electricity in a solution?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Electrochemistry
The rate of the reaction $2A + B \rightarrow C$ can be represented by which of the following?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Chemical Kinetics
The rate law of a reaction is $\text{Rate}=k[A][B]^2$. If the concentration of $B$ is trebled keeping $[A]$ constant, the rate becomes
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Chemical Kinetics
Primary amine on reaction with Grignard reagent gives which of the following?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Organic Reactions
Which of the following is Hinsberg reagent?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Amines
Which of the following is deposited at cathode on electrolysis of aqueous NaCl solution?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Electrochemistry
Which of the following is formed when acetamide reacts with Br$_2$/KOH?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Amines
Which of the following is the most basic?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Amines
The IUPAC name of CH$_3$–CH(NH$_2$)–CH$_3$ is:
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Nomenclature Of Organic Compounds
The functional group of a secondary amine is
Bihar Board XII - 2023
Bihar Board XII
Chemistry
functional groups
Which of the following gives acetone on oxidation?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Alcohols, Phenols and Ethers
If 18 g of glucose is dissolved in 1000 g of solvent, then the solution is said to be:
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Inorganic chemistry
Which of the following will have highest boiling point?
Bihar Board XII - 2023
Bihar Board XII
Chemistry
Colligative Properties
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