Sankalp Batch Class 12th (Board + CUET) Enrollment Link - : bit.ly/Sankalp_Batch You can also watch these Lectures in our APP. Class Notes & Practice sheets which includes Hints & Solutions will also be provided. Visit : 📲PW App Link - bit.ly/YTAI_ncert 🌐PW Website - www.pw.live
20:42 mam u have told us that the metal which is lower in electrochemical series will be reduced then how potassium, zinc,and calcium are reduced in place of hydrogen in aq soln
@@shamitpratapsingh5544bhai yaha pe aqueous solution bola hai to hame H+ and OH- ko bhi sath leke chalna hai. Yaha pe KI me K reduction potential {RP} H ke comparison me kam hai to K to cathode pe jayega hi nahi . In actual cathode pe H+ jayega. Aur aise hi aur option pe laga ke dekh lo aur last me Au hi cathode pe jayega kyunki Au{RP} jyada hai H+ ke comparison me.
0:00 Introduction 0:56 Content covered 1:41 Questions 9:37 Faraday's law of electrolysis 13:00 Questions based on Faraday's law of electrolysis 21:37 Types of cell 26:51 Lead storage battery 35:05 Fuel cell 44:40 Rusting of Iron 51:28 Prevention of Rusting 56:08 Questions based on Rusting 56:54 Thank You
During corrosion of iron Fe oxidises and forms 2Fe²+ and in the presence of water and air the following reaction happens:- 2Fe+O2+2H+ --2Fe²+ +2H2O and when 2Fe²+reacts with O2+xH2O--Fe2O3.xH2O is formed
Ma'am meine apne papa ko yeh lead storage battery ki baat batayi toh woh mujhpe ulta ho gaya 🥲 Papa ne bola beta apne baap ko maat sikha cahega toh abhi anode aur cathode ke reactions bhi bol dunga 🙂✌🏼
Mam fuel cell ke net cell rxn me left side me 4h+ hoga aapne 2h+ likha h....... Aur mam mercury cell me cathode rxn me right side me 2OH minus hoga.....
20:42 mam u have told us that the metal which is lower in electrochemical series will be reduced then how potassium, zinc,and calcium are reduced in place of hydrogen in aq soln
Thank you mam for teaching this chapter so easily my concepts get cleared with your videos and i had watch many other teacher but i didn't understand from them
Thank you so much mam your teaching so nice you are a realy chemist your physical chemistry teaching is so beautiful mam very very heartly tq so much mam ❤❤ your teaching style is amazing no one be cross you once again tq so much mam
Mam hm 12 th me h toh hm bhi pad skte h kya kyunki ye cuet ke liye pada rhe hna isliye puch rhi hu plz mam bta di jiye ki 12th ncert class wale bhi pad skte h
Par mamm aq solution me toh Zn2+ , K+ , Ca2+ ka reduction hoga hi nhi , kyunki Inka reduction potential solution me muajood H+ se kam hai isliye ye toh reduce ho hi nhi sakte
Nhi atomic mass and molar mass diff. hain. Atomic mass atom ka weight hota hai like hydrogen ka 2 helium ka 4 etc. But molar mass hitny bhi sary atoms ya elements hain un k atomic weight ka sum hota hai for example: NaCl mey Na=23 and Cl=35.5 approx. So in ka molar mass hoga in dono ka sum like 23+35.5=58.5 g/mol. Or ye ik atom ya single element ka same hota hai like Na ka atomic weight hoga 23 and uss ka molar mass hoga sab elemnts ka sum jo k srif Na hai which will be 23g/mol. Thats it.If there is any mistake u can correct it. Thanks me later!😊
SORRY to say but mam ne ek cheez glt btai....acc. to mam, Leclanche cells (dry cells) can be called as button cells.....but actually Mercury cells are called as button cells ..and are used in watches nd hearing aids while Leclanche cell (or dry cell) is used in CLOCKS and Transistors..
The way she teaches is superb but there are lots of mistakes in this lec so I don't recommend uh this to watch as uh all gets too confused abt rxn after watching this if uh are dealing first time with this chapter...no hate just a lil reality 😊❤
