Скачать с ютуб PREVIOUS YEAR NEET QUESTIONS BASED ON ELECTRODE POTENTIAL/GALVANIC CELL,STRONGEST OXIDISING AGENT в хорошем качестве

PREVIOUS YEAR NEET QUESTIONS BASED ON ELECTRODE POTENTIAL/GALVANIC CELL,STRONGEST OXIDISING AGENT

Electrochemistry 11. Standard electrode potentials are Fe^ 2+ / Fe ; E deg = - 0.44 and F e^ 3+ /Fe^ 2+ E ^ o =0.77.Fe^ 2+ F e^ 3+ Fe kept together, then (a) F e^ 3+ increases (b) F e^ 3+ decreases (c) F e^ 2+ /Fe^ 3+ remains unchanged (d) F e^ 2+ decreases. (2001) 12. Electrode potential for the following half-cell reactions.are Zn Zn^ 2+ +2e^ - E deg = 0.76V Fe Fe^ 2+ +2e^ - E deg = 0.44V The EMF for the cell reaction Fe^ 2+ + Zn Zn^ 2+ +Fe will be (a) - 0.32 V (b) + 1.20 V (c) - 1.20 V d(d) + 0.32V (1996) 13. An electrochemical cell is set up as: Pt; H_{2}(1atm)|HCl(0.1M)| |CH 3 COOH(0.1M)|H 2 (1 atm); Pt. The e.m.f. of this cell will not be zero, because (a) acids used in two compartments are different (b) e.m.f. depends on molarities of acids used - (c) the temperature is constant (1995) (d) pH of 0.1 M HCl and 0.1 M C*H_{3} COOH is not same. 14. Standard reduction potentials at 25 deg * C of Li^ + | Li Ba^ 2+ | Ba , Na^ + / Na and Mg^ 2+ | Mg are -3.05, -2.90, -2.71 and -2.37 volt respectively. Which one of the following is the strongest oxidising agent? (a) B a^ 2+ (b) M g^ 2+ (1994) (c) N a^ + (d) L i^ + 15. A solution of potassium bromide is treated with each of the following. Which one would liberate bromine? est (a) Hydrogen iodide (c) Chlorine (b) Sulphur dioxide#chemistry #chemistryclass12importantquestions2023 (d) Iodine (1993) 1 S r e 1) n + e) 0) tion#science #methodsinbiologycsirnetpyq