Chemistry questions
29404 published questions with worked solutions.
- The resistance of 1 10 M solution is 2.5 10^ 3 ohm. What is the molar conductivity of solution? (cell constant = 1.25 cm^ -1 )...
- The correct representation of Nernst's equation for half-cell reaction Cu^ 2+ (aq) + e^- Cu^+(aq) is [MHTCET 2019]
- Standard hydrogen electrode (SHE) is a [MHTCET 2019]
- Which among the following is correct for electrolysis of brine solution? [MHTCET 2019]
- In the electrolysis of aqueous sodium chloride with inert electrodes the products obtained at anode and cathode respectively are...
- Calculate E.M.F. of following cell at 298 K Zn(s)|ZnSO_4(0.01M)||CuSO_4(1.0M)|Cu(s) if E^ _ cell = 2.0 V [MHTCET 2019]
- The molar conductivities at infinite dilution for sodium acetate, HCl and NaCl are 91 S cm^2 mol^ -1 , 425.9 S cm^2 mol^ -1 and...
- The number of moles of electrons passed when current of 2 A is passed through a solution of electrolyte for 20 minutes is [MHTCET...
- How many Faradays of electricity are required to deposit 10 g of calcium from molten calcium chloride using inert electrodes?...
- In the cell represented by Pb(s)|Pb^ 2+ (1M)||Ag^+(1M)|Ag(s), the reducing agent is [MHTCET 2016]
- The overall reaction taking place at anode during electrolysis of fused sodium chloride using suitable electrode is [MHTCET 2015]
- The process in which metal surface is made inactive is called [MHTCET 2015]
- At 25^ C molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54 ^ -1 ,cm^2 ,mol^ -1 and at infinite...
- A button cell used in watches functions as following Zn(s) + Ag_2O(s) + H_2O(l) 2Ag(s) + Zn^ 2+ (aq) + 2OH^-(aq) If half-cell...
- According to Faraday's first law [MHTCET 2011]
- Given, for Sn^ 4+ /Sn^ 2+ , standard reduction potential is 0.15 V and for Au^ 3+ /Au, standard reduction potential is 1.5 V. For...
- Oxidation potential of unimolar calomel is [MHTCET 2010]
- The standard reduction potential for Mg^ 2+ /Mg is -2.37 V and for Cu^ 2+ /Cu is 0.337. The E^ _ cell for the following reaction...
- Copper is a divalent metal. The value of its electrochemical equivalent is 3.29 10^ -4 g. Its atomic mass is [MHTCET 2009]
- The reduction electrode potential, E of 0.1M solution of M^+ ions (E^ _ RP = -2.36 V) is [MHTCET 2009]