Class 12 chapter 1 II Solutions 01 II Introduction and Concentration Terms (Old Videos Compilation)

LAKSHYA BATCH 2021-2022

🔘LAKSHYA JEE and LAKSHYA NEET - Separate Batches for Class 12th (PCM/PCB)

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4) 30 Days Class 11th Revision Booster from 21st November.

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7) Specialised Curriculum after each chapter completion with NCERT Discussions/Extra Practice Problems.

8) OFFLINE KA FEEL!! Students can purchase Study Materials, which include complete theory & level exercises.

9)Test after every 15 days to help students improve their problem-solving skills(starting end week of April and total test are 15).

9) Rewards available for the Toppers in the test.

10) 5 Scholarship tests for deserving students.

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2) Detailed and catchy theory of each chapter with illustrative examples helping students in concept building.

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4) Extra key points are mentioned in the book which gives a competitive edge over other books.

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7) Tips and tricks for speed and skill enhancement of students.

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[PhysicsWallah]

LAKSHYA BATCH 2021-2022

🔘LAKSHYA JEE and LAKSHYA NEET - Separate Batches for Class 12th (PCM/PCB)




🔴 Details About Lakshya JEE & Lakshya NEET Batch :

1) Separate batches for Class 12th JEE & 12th NEET.

2) Complete LIVE CLASSES of each subject(Students can see recorded lecture if He/She misses the Live Class).







3) Class 12th JEE/NEET Syllabus coverage by 20th November.

4) 30 Days Class 11th Revision Booster from 21st November.

5) Study Materials with each lecture based on topics covered in that lecture.

6) Detailed Video Solutions of DPP will be provided.

7) Specialised Curriculum after each chapter completion with NCERT Discussions/Extra Practice Problems.

8) OFFLINE KA FEEL!! Students can purchase Study Materials, which include complete theory & level exercises.

9)Test after every 15 days to help students improve their problem-solving skills(starting end week of April and total test are 15).



9) Rewards available for the Toppers in the test.

10) 5 Scholarship tests for deserving students.



🔴 OFFLINE KA FEEL!!!

•Printed Study Material for Lakshya JEE/NEET Package ( You can order on Physics Wallah App)

1) Package contains a total of 15 books. Each subject (PCM/PCB) will be having 4 modules and one solution booklet (100% solutions of all problems).

2) Detailed and catchy theory of each chapter with illustrative examples helping students in concept building.

3) Critical topics are highlighted in the book for keeping them in the spotlight.

4) Extra key points are mentioned in the book which gives a competitive edge over other books.

5) Books consist of MCQs of different levels of difficulty to enhance problem solving techniques.

6) Detailed answers for every question for better understanding.

7) Tips and tricks for speed and skill enhancement of students.







✒️ PHYSICS WALLAH SOCIAL MEDIA PROFILES :

[inactive]

4:28 Index
8:17 *Solution*
9:35 Solute & Solvent example
11:23 Another way of finding solute/solvent
16:27 Concentration terms

17:50 *wt by wt%*
19:20 _q1_ ... 21:06 _q2_

23:08 *v by v%*

24:26 *wt by v%*
27:00 _q1_ ... 28:55 _q2_ ... 32:05 _q3_

34:00 *Mole Fraction*
37:20 _q1_ ... 41:05 _q2_

44:29 *PPM*

46:26 *MOLARITY* 48:42
49:50 _q1_ ... 51:20 _q2_ ... 53:30 _q3_ ...
56:25 _q4_ ... 59:50 _q5_ ... 1:02:44 _q6_

1:06:05 *Molar* concept
1:07:40 _q1_

1:10:20 *Molarity of ions* _q1_
1:11:11 _a1_ ... 1:12:14 _a2 & a3_
1:14:00 _q2_

1:14:56 *Molarity of Dilution*
1:18:20 _q1_

1:19:48 *Molarity of Mixtures*
1:20:57 _Formula_ 1:22:00
1:23:02 _q1_

1:24:12 *MOLALITY*
1:25:57 _Only SOLVENT_
1:27:28 _q1_ ... 1:29:25 _q2_

1:32:27 *Equivalent Mass/Weight*

1:33:00 *_X => Valency Factor_*
1:33:17 *Acid* 1:36:17
1:36:50 *Base* ~~~ 1:38:35 *Salt*
1:42:20 _a1_ ... 1:42:48 _a2_ ... 1:43:13 _a3_
1:43:54 Equivalent wt depends on reaction 1:44:46
1:45:44 Eq wt _Recap_

1:46:47 *Gram Equivalent* -*_1:48:04_*-
1:48:35 _q1_ ... 1:49:38 _q2_ ... 1:51:38 _q3_

1:53:00 *NORMALITY* 1:54:25
1:55:25 _q1_

1:58:20 *Normality* Concept
1:59:10 _q1_

Edit: Thanks everyone ❤️

[TheGauranshonly]

Let's start class 12th Board[2024-25] Exam Preparation .
Best of luck to all my friends👍🏼
Let's rock it, 😎

[pramitharyan]

Teaching quality is more important than fancy boards and gadgets. Thank you so much sir.

[rmjzltc]

Let's start our amazing journey of class 12th with alakh sir (2024-25)❤☺️

[aestheticworld]

Welcome to class 12 after passing class 11 very badly during covid time🤣😭😭😂😂😂

[sakshisoren]

5:20 solution intro
13:18 concentration terms
17:51 wt by wt%
23:08 vol by vol%
24:30 wt by vol%
33:47 mole fraction
44:11 PPM and PPB
46:15 molarity
1:24:13 molality
1:32:10 gram equivalent
1:52:58 normality

[swekshasaha]

Welcome class XII🤗
"#After passing class XI very badly😂#"
2020-2021 batch!! 😁🥰

[princeclasher]

Sir from year 2020 solid state is also included in syllabus so i request you to make videos on that topics thank you sir.

[princekingston]

1 million in few minutes
Hard Work Never Fails💪

[shaileshsharma]

Sorry sir but at 01:09:26 mass of pottasium(K) is 39 u have mistaken it by using atomic number of K as 19. So molar mass of KoH is 56 and final answer is 4.2gm. 🤗🤗

[vivek_]

A big salute to sir's dedication....
Did anyone noticed that sir turned off the fan in 1:27:20 even in hot weather to prevent any noise in video
Sir is truly amazing
Smash like if you believe
👍👍👇

[tigerdon]

12th vale
Attendance lagao
Or senior vali feeling lo😂😂

[IsaacJames]

I am from the 2023-24 12th batch and I passed out with 96.4% only because of Alakh sir's lectures in chemistry and physics. Can't thank you enough sir.

[shadabhasan]

video starts at 00:00...
you are already saving your time if you are watching physics wallah...

[rsaini]

And those who started this chap in july starting are ....ultra ultra legends ✔✔♨🔥😜

[tanud]

Who is better
A. Vedantu
B. Physics Wallah
My vote goes to physics wallah

[yycxpmz]

Let's start our journey of 12th class... Best of luck to all my friends (24-25 batch )

[utkarshgupta]

I need to use volume down button when sir said, " Hello,

[harshvardhansingh]

Who is watching this video again in 2020 after getting frustrated from online zoom classes??😂😂