List of top Chemistry Questions

Which of the following is diamagnetic?
Choose the incorrect statement:
Which among the following shows -R effect?
Which of the following is an extensive property?
The correct order of boiling point:
CH\(_3\)-CH\(_2\)-CH\(_2\)-CH\(_2\)-NH\(_2\), CH\(_3\)-CH\(_2\)-NH-CH\(_2\)-CH\(_3\), CH\(_3\)-CH\(_2\)-N(CH\(_3\))\(_2\)
Which one of the series of hydrogen spectrum is in the visible region?
In the reaction \( 3Mg + N_2 \rightarrow Mg_3N_2 \), the oxidation number of Mg changes is:
Which of the following is a non-polar molecule?
Which of the following is non-aromatic?
In the reaction \( 2\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O} \), if 4 moles of hydrogen react with excess oxygen, how many moles of water are produced?
What is the pH of a solution with a hydrogen ion concentration of \( 1 \times 10^{-5} \, \text{mol/L} \)?
Which of the following elements has the highest electronegativity?
The enthalpy change for the reaction \( \text{N}_2(g) + 3\text{H}_2(g) \rightarrow 2\text{NH}_3(g) \) is \( -92.4 \, \text{kJ/mol} \). What is the enthalpy change when 4 moles of nitrogen react?
What is the volume occupied by 2 moles of an ideal gas at standard temperature and pressure (STP)?
In the reaction \( \text{Zn} + 2\text{Ag}^+ \rightarrow \text{Zn}^{2+} + 2\text{Ag} \), what is the oxidation state of zinc in \( \text{Zn} \) and \( \text{Zn}^{2+} \)?
Which of the following is the set of neutral oxides? (a) \( \text{Al}_2\text{O}_3, \text{Cl}_2\text{O}_7 \), b) \( \text{N}_2\text{O}, \text{CO} \)
What technique is used to separate chloroform from aniline?
The disease is caused by a deficiency of riboflavin.
What is the IUPAC name of phenyl isopentylether?
Which of the following has the highest \( K_b \) value?
In which of the following cases does manganese have a +7 oxidation state?
Layer's test is used for what purpose?
Arrange in the order of conductivity: \[ \text{Na, Ag, Fe, Cu} \]
When toluene is treated with chromium oxide and acetic anhydride, followed by hydrolysis, what is the product formed?
Arrange in the order of dipole moment: \[ \text{NH}_3, \, \text{NF}_3, \, \text{H}_2\text{S}, \, \text{CHCl}_2 \]