List of top Chemistry Questions

The IUPAC name of the complex ion formed when gold dissolves in aqua regia is:
Volume of a gas at NTP is \( 1.12 \times 10^{-7} \, \text{cm}^3 \). The number of molecules in it is:
What is the concentration of \( \text{H}^+ \) ions if the pH is 2.7?
What is the rate law if the rate is directly proportional to \([B]^2\) and independent of \([A]\)?
Which is an adiabatic process?
What is the working principle of a cyclotron?
What is the maximum oxidation state of an element in the periodic table?
Ortho-sulphobenzimide is used as:
Calculate the pH of the solution using the Henderson-Hasselbalch equation.
In \( \text{NO}_3^- \) ion, the number of bond pairs and lone pairs of electrons on the nitrogen atom are:
What is the reactivity of alkyl alcohols towards haloacids?
Identify ortho and para directing groups from the following: \[ -\text{CHO}, -\text{NHCOCH}_3, -\text{OCH}_3, -\text{SO}_3\text{H}. \]
What is the ratio of abundance of chlorine isotopes with atomic masses 35 and 37?
In a BCC (Body-Centered Cubic) structure, the radius of the atoms is:
Which element shows the lower oxidation state in the 3d series?
Which of the following does not obey the octet rule?
For irreversible expansion of an ideal gas under isothermal conditions, which of the following is correct?
Which of the following is not a neutral ligand?
What is the chemical formula of glycerol?
Which element has the highest oxidizing potential?
Alkyl halide and aryl halide react in the presence of sodium metal and dry ether. The name of the reaction is?
What is the polymer of elastomer?
When ammoniacal silver nitrate reacts with organic compounds, this test is called:
Which of the following ligands has two donor atoms?
What is the depression in the freezing point?