NEET UG Redox & Electrochemistry — practice questions
35 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice NEET UG Redox & Electrochemistry in the app →Which combination correctly matches the two processes described in the notes for a galvanic cell?Refer to the figure of the zinc rod in solution. The label near the rod indicates it acts as the anode becauseWhich statement about reduction matches the chapter notes?The potential developed between the zinc rod and the solution due to its tendency to undergo oxidation is callWhen a Zn rod is placed in $ZnSO_4$ solution, why does the oxidation not continue indefinitely at the same ratWhich one of the following reactions is not an example of redox reaction2.5 F of electricity are passed through a $\mathrm{CuSO_4}$ solution. The number of gram equivalent of Cu depoWhich of the following ion is expected to have highest value of molar conductivity at infinite dilution in theWhat would be the product of electrolysis if molten $\mathrm{ICl}_3$ is electrolysed?$\mathrm{CrO}_4^{2-}$ (yellow) changes to $\mathrm{Cr}_2\mathrm{O}_3^{2-}$ (orange) in $\mathrm{pH} = \matWhen zinc is added to $\mathrm{CuSO_4}$ copper gets ppt. due toIn a Daniell cell with Zn (anode) and Cu (cathode), and $E^\circ(Cu^{2+}/Cu) = +0.34$ V, $E^\circ(Zn^{2+}/Zn) The Nernst equation at $25^\circ$C for a cell with $n$ electrons transferred is $E = E^\circ -$:Electrolysis of molten NaCl at the electrode passes $1$ F of charge. The amount of Na deposited at the cathodeIron rusting on the village ploughshare is best described as:In a redox reaction, oxidation and reduction occur:A half reaction that involves loss of electrons is called:A half reaction that involves gain of electrons is called:An atom of a free uncombined element has an oxidation number of:For a single atom ion, the oxidation number equals the:All alkali metals in their compounds have an oxidation number of:All alkaline earth metals in their compounds carry:Aluminium is regarded as having which oxidation number?The oxidation number of oxygen in most compounds is:In which compounds is the usual oxygen rule an exception?The oxidation number of hydrogen is usually:In lithium hydride the oxidation number of hydrogen is:The algebraic sum of oxidation numbers in a neutral compound is:Are all decomposition reactions redox reactions?In which reaction is an ion in a compound replaced by another?Recovering halogens from their halides requires which process?A reaction where one element is both oxidised and reduced is:A disproportionating element must exist in at least how many states?In a disproportionation, the reacting element starts in a state that is:Decomposition of which compound is a familiar disproportionation?