List of top Chemistry Questions

For a cell reaction to be spontaneous, the standard free energy change of the reaction must be:

The order of the reaction N\(_2\)O\(_3\) \( \rightleftharpoons \) N\(_2\)O\(_4\) is:

The reactions with low activation energy are always:

Equivalent conductance of an electrolyte containing NaF at infinite dilution is 90.1 Ohm\(^{-1}\) cm\(^{2}\). If NaF is replaced by KF, what is the value of equivalent conductance?

The tendencies of the electrodes made up of Cu, Zn and Ag to release electrons when dipped in their respective salt solutions decrease in the order:

The electrode reaction that takes place at the anode of CH\(_3\)OH - O\(_2\) fuel cell is:

For a closed system consisting of a reaction, N\(_2\)O\(_4\) \( (g) \) \( \rightleftharpoons \) 2NO\(_2\) \( (g) \), the pressure:

For the reaction, H\(_2\)(g) + I\(_2\)(g) \( \rightleftharpoons \) 2HI(g), \( K_p \) = 0, what happens if the pressure on ice is increased at a constant temperature?

The metal that crystallizes in simple cubic system is:

When ideal gas expands in vacuum, the work done by the gas is equal to:

6 moles of an ideal gas expand isothermally and reversibly from a volume of 1 litre to a volume of 10 liters at 27°C. What is the maximum work done?

The order of the reaction: N\(_2\)O\(_4\)(g) \( \rightleftharpoons \) 2NO\(_2\)(g) is:

The reaction, Zn(s) + CuSO\(_4\)(aq) \( \rightleftharpoons \) ZnSO\(_4\)(aq) + Cu(s) is an example of a:

The purple colour of KMnO\(_4\) is due to:

How many lattice points belong to a face-centered cubic unit cell?

Schottky defect in solids is due to:

Which one of the following is amorphous?

NH\(_3\), group in a coordination compound is named as:

Which one of the following has maximum number of unpaired electrons?

The magnetic moment of lanthanide ions is determined from which one of the following relation?

How many isomers does \( \text{Co}(C_6H_6)_3 \) have?

Excess of NaOH reacts with Zn to form:

The equivalent weight of potassium permanganate when it acts as oxidizing agent in ferrous ion estimation is:

Which of the following species has a bond order other than $3$ ?

Nylon-$66$ is an example of: