List of top Chemistry Questions

Which of the following gases has the highest density at STP?
What is the pH of a \( 0.01 \, \text{M} \) solution of \( \text{HCl} \)?
What is the pH of a \( 0.01 \, \text{M} \) solution of \( \text{NaOH} \)?
Which of the following compounds has the highest boiling point?
What is the molecular mass of \( \text{K}_2\text{SO}_4 \)?
What is the oxidation number of sulfur in \( \text{H}_2\text{SO}_4 \)?
Which of the following elements has the smallest atomic radius?
Which of the following is the major product of the reaction between 1-bromobutane and potassium hydroxide in ethanol?
How many moles are present in \(44\, \text{g}\) of \(CO_2\)?
(Molar mass of \(CO_2 = 44\, \text{g/mol}\))
What is the standard electrode potential of a half-reaction in which electrons are transferred from \(Ag^+\) to \(Ag\)?
For a first-order reaction, the rate constant is \(k = 0.01 \, \text{s}^{-1}\). What is the half-life of the reaction?
Which of the following elements has the highest electronegativity?
Which of the following substances does not undergo hydrolysis in aqueous solution?
In the reaction \( 2\text{NaOH} + \text{Cl}_2 \rightarrow \text{NaCl} + \text{NaOCl} + \text{H}_2\text{O} \), what is the oxidation state of chlorine in sodium hypochlorite (NaOCl)?
Which of the following compounds has the highest boiling point?
The pH of a solution is 3. What is the concentration of hydrogen ions in this solution?
Which of the following is a non-metal?
Which of the following has the greatest electronegativity?
Which of the following is not a colligative property?
Which of the following compounds will give a positive Iodoform test?
The work done by a gas during an isothermal expansion from 2 L to 4 L at a constant temperature, with pressure initially at 2 atm, is: (Use R = 8.314 J/mol·K, T = 300 K).
What is the IUPAC name of CH$_3$CH(OH)CH$_3$?
What is the pH of a 0.01 M solution of HCl?
The potential of a large liquid drop when eight liquid drops are combined is 20 V. What is the potential of each single drop?
What is the pH of a solution with [H\(^+\)] = 10\(^{-3}\) M?