List of top Chemistry Questions asked in Bihar Board Class XII

An aldehyde on oxidation gives
The IUPAC name of \( \text{CH}_3\text{CH}= \text{CH}_2\text{CHO} \) is
Formalin is the commercial name of
By which of the following formic acid and formaldehyde can be distinguished?
An azeotropic mixture of HCl and \( \text{H}_2\text{O} \) boils at
The electromotive force of the cell \( \text{Zn} | \text{ZnSO}_4 || \text{CuSO}_4 | \text{Cu} \) is 1.1 volts. Its cathode is
The rate of reaction of a substance depends upon
Isotonic solutions have the same
A charge of 96500 coulomb liberates ............. from the solution of CuSO₄.
The cell constant of a conductivity cell is
Who gave the theory of ionisation?
Chloramine-T is a/an
Hydrazine is a drug which is used in the treatment of which of the following?
\( \text{F}_2\text{C} = \text{CF}_2 \) is a monomer of which of the following?
Which of the following is a natural rubber?
A raw material used in making nylon is
A vitamin which plays a vital role in the coagulating property of blood is
Which of the following is an alkaloid?
Which of the following has the smallest bond angle?
The number of unpaired electrons in \( \text{Cu}^{2+} \) ion (Z = 29) is
The maximum oxidation state of chromium is
Which of the following has the maximum number of unpaired electrons?
Which of the following is the molecular formula of Orthophosphoric acid?
The structure of XeF₄ is
Which of the following halogens does not exhibit a positive oxidation state?