Electrochemistry questions
1808 published questions with worked solutions.
- Which one of the following reactions is possible at anode? [Jamia Millia Islamia 2005]
- When Fe metal is rusted then Fe is:
- For reducing one mole of Fe^ 2+ ion to Fe, the number of Faraday of electricity required is:
- Which of the following is not correct regarding the electrolytic preparation of H_2O_2? [DCE 2008]
- Electrolysis of X gives Y at anode. Vacuum distillation of Y gives H_2O_2. The number of peroxy (O–O) bonds present in X and Y...
- When electric current is passed through an ionic hydride in the molten state,
- H_2 is formed by electrolysis of aqueous brine solution. In an experiment 0.112 mL of H_2 gas is formed at NTP. What is the pH...
- A molten ionic hydride on electrolysis gives:
- The ionic conductances of following cations in a given concentration are in the order [OJEE 2004]
- Which one of the following reactions occur at the anode, in the Castner process of extracting sodium metal? [EAMCET 2003]
- The ionic conductance is least for
- Out of the following metals that cannot be obtained by electrolysis of the aqueous solution of its salts is
- E^ _ M^ 2+ /M values of some metals are Be : -1.85 V Mg : -2.37 V Ca : -2.87 V Sr : -2.89 V Cu : +0.34 V Hg : 0.80 V Number of...
- The main reason for using a mercury electrolytic cell in NaOH manufacture is that:
- In the Down's cell KCl is added to NaCl to:
- NaOH is prepared by the electrolysis of:
- Manufacture of NaOH is done by:
- Which of the following alkali metal ion in aqueous solution is the best conductor of electricity?
- The products of the electrolysis of concentrated aqueous solution of common salt are:
- The electrolyte employed in the extraction of sodium by Down's electrolysis method is:
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