Chemistry questions
29404 published questions with worked solutions.
- Electrolysis involves oxidation and reduction respectively at
- The quantity of electricity needed to liberate 0.1 gm equivalent of an element at the electrode is
- Consider the cell, Pt ,| ,H_2(g) ,| ,H^+(aq) ,|| ,I^-(aq) ,| ,I_2(s) . If the standard cell potential is 0.54 V then the standard...
- A redox reaction is one where _________
- Which substance serves as a reducing agent in the following reaction? 14 H^+ + Cr_2O_7^ 2- + 3 Ni 2 Cr^ 3+ + 7 H_2O + 3 Ni^ 2+
- An example for an oxidation reaction is __________
- When the solution of an electrolyte is diluted, the molar conductance _________
- Conductance of 0.1 M nitric acid is 6.3 10^ -2 ohm^ -1 ,cm^ -1 . The molar conductance of solution is ________ ohm^ -1 ,cm^ 2...
- The molar conductance of 0.001 m acetic acid is 50 ohm^ -1 ,cm^ 2 ,mol^ -1 . The maximum value of molar conductance is 250 ohm^...
- At 25^ C conductivity of a normal solution of KCl is 0.002765 ohm^ -1 ,cm^ -1 . The resistance of cell is 400 ohms. The cell...
- The increase in conductance of an electrolyte solution with dilution is due to the increase in _________
- At infinite dilution, the contribution of cation and anion to the molar conductance is ________
- Strong electrolytes are those which _______
- The conductance of four electrolytes in ohm^ -1 ,cm^ -1 are given below. Which one offers higher resistance to passage of...
- If X is the resistance of the solution and M is the molarity of the solution, the molar conductivity of the solution is given by...
- If molar conductance of 1 M benzoic acid is 128 ohm^ -1 ,cm^ 2 ,mol^ -1 and if the conductance of benzoate ion and H^+ ion at...
- An electrolyte is one which _______
- The flow of current in an electrolyte is due to the movement of ________
- The electrodes of a conductivity cell are 3 cm apart and have a cross-sectional area of 4 cm^2 . The cell constant of the cell...
- At infinite dilutions, the molar conductances of Ba^ 2+ and Cl^- are 127 and 76 ohm^ -1 ,cm^ 2 ,mol^ -1 . The molar conductivity...