https://preview.redd.it/lwwqdr30a11h1.png?width=950&format=png&auto=webp&s=596a6afb45525bdbf39720f8095b62d1c9fcd36b

can someone explain this and why the other options are wrong

https://preview.redd.it/6uvfups5811h1.png?width=950&format=png&auto=webp&s=49a50b737c61a811886a251b0d401a4a37f1c04d

can someone explain this and tell why the other options are wrong as well?

https://preview.redd.it/uiqmod3zyi0h1.png?width=1181&format=png&auto=webp&s=f9d64ce84355ccfbcfb056a36225f91854d0fe42

https://preview.redd.it/eg291za0zi0h1.png?width=896&format=png&auto=webp&s=3e8405e3da91c2a8a84cd8ebc2db760a9a262a2f

these questions are above iat level right? saw pys for electrochem in iat and they were on the easier side. these ones seem like an overkill?

How do all of u analyse mock tests? like do u just look at the questions gone wrong and understand how to solve them or do u revise that subtopic again as a whole? also if had no idea abt a qs(like from a chapter u have skipped) then how do u go abt it in the anaylsis. i heard abt a mistake notebook but i dont think it will help in my case. so pls share how to effective anaylse so that u can do better in the next mock

How do all of u analyse mock tests? like do u just look at the questions gone wrong and understand how to solve them or do u revise that subtopic again as a whole? also if had no idea abt a qs(like from a chapter u have skipped) then how do u go abt it in the anaylsis. i heard abt a mistake notebook but i dont think it will help in my case. so pls share how to effective anaylse so that u can do better in the next mock

I gave my first mock (2017 paper) around 1 month ago and got 86. decided to focus on maths and chem. studied wtv i could and gave a mock today to see how much i had improved. got the exact same score. feeling hopeless now idk what is going wrong

https://preview.redd.it/ysypkofqqqxg1.png?width=977&format=png&auto=webp&s=1c81c1b99920198cae4277935f223a0f948fd855