Welcome to your REDOX REACTIONS AND ELECTROCHEMISTRY -1
1.
Which has chlorine in highest oxidation state?
2.
Which is NOT a redox reaction?
3.
Oxidation number of Mn in MnO₄²⁻?
6.
In acidic medium, MnO₄⁻ is reduced to—
7.
Which species undergoes reduction in MnO₂ + 4HCl → MnCl₂ + Cl₂ + H₂O?
8.
Standard electrode potential of which is highest positive?
10.
Which metal will displace Cu from CuSO₄?
11.
Disproportionation reaction example—
12.
Which has oxidation number +3?
13.
Which is strongest reducing agent?
14.
Electrons flow in a galvanic cell from—
15.
Salt bridge is used to—
18.
Good example of autocatalysis—
19.
Which species is oxidized in reaction: 2Fe²⁺ + Cl₂ → 2Fe³⁺ + 2Cl⁻?
20.
Oxidation number of Cr in K₂Cr₂O₇?
21.
Which cannot act as oxidizing agent?
22.
Which electrode will have highest reduction potential?
23.
Electrolytic cell differs from galvanic cell because—
24.
Primary cell example—
25.
Secondary cell example—
26.
Value of ΔG for a spontaneous cell reaction—
27.
Ecell = 0.059/n log K. At 298K if K=1E5, n=1, E=?
28.
Which ion reduces permanganate in acidic solution?
29.
Electrode where reduction occurs—
30.
Which cell has zero resistance ideally?
31.
Standard hydrogen electrode has potential—
32.
Which ion acts as both oxidizing & reducing agent?
33.
Which electrode is used in SHE?
34.
Zn + Cu²⁺ → Zn²⁺ + Cu. Which statement true?
35.
Electron gained when Fe³⁺ → Fe²⁺
36.
E° of cell = E°(cathode) – E°(anode). For Cu/Zn cell, which is cathode?
37.
In electrolysis of molten NaCl, product at cathode—
38.
Oxidation number of S in H₂S₂O₇?
39.
Which increases cell potential?
40.
Which is a disproportionation of H₂O₂?
41.
Which has maximum reducing power?
42.
Cell reaction feasible when—
43.
Normality of 0.1 M KMnO₄ in acidic medium?
44.
Which metal is stored under kerosene?
45.
In corrosion of iron, cathode region undergoes—
