List of top Chemistry Questions asked in MHT CET

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 \( \text{Zn}^{2+} \)?

In the reaction 2Al(s) + 3Cl2(g) → 2AlCl3(s), if 4.0 g of aluminum reacts with 6.0 g of chlorine gas, what is the limiting reactant?

For the reaction N2(g) + 3H2(g) → 2NH3(g), the equilibrium constant Kc at a certain temperature is 1.5. If the concentration of N2 is 0.5 M, H2 is 1.0 M, and NH3 is 0.2 M, what is the reaction quotient Qc?

In 2-chloro-3,4-dimethylhexane, how many chiral C atoms are present?
The magnetic moment of \( \text{Mn}^{3+} \) is:
For a first-order reaction, the slope of the graph between \(\log[A]\) vs time is equal to:
What is the pH of a 0.01 M solution of hydrochloric acid (HCl)?
The enthalpy change for the reaction \( \text{C} + \text{O}_2 \rightarrow \text{CO}_2 \) is \( -393.5 \, \text{kJ/mol} \). What is the heat released when 2 moles of carbon react with excess oxygen?
A solution contains 10 g of NaOH dissolved in 500 mL of water. What is the molarity of the NaOH solution?
What is the total number of moles of gas in a 5 L container at 300 K and 2 atm pressure (Use the ideal gas law)?
What is the percentage composition of nitrogen in ammonium nitrate (\( \text{NH}_4\text{NO}_3 \))?
What is the standard electrode potential for the half-reaction \( \text{Cu}^{2+} + 2e^- \rightarrow \text{Cu} \)?
What is the value of the ionization energy of hydrogen in joules? (Given that the ionization energy of hydrogen is \( 13.6 \, \text{eV} \))
A sample of an ideal gas occupies 10 liters at a pressure of 2 atm and a temperature of 300 K. What is the volume of the gas at 1 atm pressure and 300 K temperature?
Calculate the oxidation number of sulfur in \( \text{H}_2\text{SO}_4 \).
What is the molecular geometry of \( \text{SO}_3 \)?
What is the oxidation state of chromium in \( \text{K}_2\text{Cr}_2\text{O}_7 \)?
The pH of a solution is 3. What is the concentration of \( \text{H}^+ \) ions in the solution?
Which of the following gases has the highest density at STP?
The oxidation number of chlorine in $ \text{Cl}_2 \text{O} $ is:
What is the empirical formula of $ \text{C}_6\text{H}_6 $?
What is the molecular mass of $ \text{Na}_2\text{SO}_4 $?