Sir-Rai - Invidious

Sir-Rai

Welcome to a concept-based learning channel for Science, Chemistry, Physics, and English. This channel is designed for students who want clear understanding, practical knowledge, and exam-focused preparation. Topics are explained step by step from basic to advanced level, with focus on concepts instead of rote learning.
Our content supports preparation for MDCAT, JEE, NEET, board exams, competitive exams, and other national & international tests. Each lesson includes practical examples, numericals, MCQs, past paper discussion, and smart exam tips to help students achieve better results.
You will learn Physics with strong fundamentals, Chemistry (Physical, Organic & Inorganic) in simple language, and English grammar, vocabulary, speaking, and writing skills. This channel is ideal for Matric, FSC, O/A Levels, college students, and exam aspirants.
If you want concept clarity, practical learning, and exam success, this channel is for you.
Subscribe now and start smart learning today.

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8:15

Sindh University Complete Mock Test 2026 🔥 400 Important MCQs | Live Class | Pre-Entry Test .

Sir-Rai

Shared 8 hours ago

346 views

23:36

SINDH UNIVERSITY Pre-Entry Test 2026 | Best MCQs Attempting Tricks & Guessing Techniques

Sir-Rai

Shared 11 hours ago

666 views

43:03

SINDH UNIVERSITY MOCK TEST 2026 | 150 Important MCQs | Pre-Entry Test 11 October 2026

Sir-Rai

Shared 23 hours ago

2.2K views

41:20

SINDH UNIVERSITY Past Paper English MCQs | Most Repeated & Important English Questions | 2026

Sir-Rai

Shared 1 day ago

1.4K views

32:45

SINDH UNIVERSITY Special English MCQs | 11 October 2026 | Top English MCQs | Entry Test 2027| Sir

Sir-Rai

Shared 1 day ago

2K views

24:50

SINDH UNIVERSITY General Science MCQs | Complete General Science Test | Sir Rai

Sir-Rai

Shared 2 days ago

1.7K views

52:27

SINDH UNIVERSITY Important Math Questions 2026 | Past Papers & Most Repeated MCQs | Entry Test.

Sir-Rai

Shared 2 days ago

891 views

21:51

SINDH UNIVERSITY Math Past Papers | Top & Repeated Questions | Simple Tricks | Pre-Entry Test 2026.

Sir-Rai

Shared 3 days ago

680 views

25:54

Sindh University 2026 | Top 100 Current Affairs MCQs | Pre-Entry Test 11 October 2026 | Sir Rai

Sir-Rai

Shared 4 days ago

1.7K views

54:38

100% For Test MCQs 220 ||for SINDH UNIVERSITY Pre-Entry Test 2026 | 11 October Test | SIR RAI

Sir-Rai

Shared 4 days ago

2.2K views

21:22

Top 100 Current Affairs MCQs 2025–2026 | Sindh University Pre-Entry Test 2027|| Sir Rai

Sir-Rai

Shared 5 days ago

1.1K views

20:01

University of Sindh Pre-Entry Test 2026 | 100 MCQS ISLAMIYAT| Sindh University Entry

Sir-Rai

Shared 5 days ago

946 views

27:26

Sindh University Test Preparation 2026-27 | Current Affairs MCQs|| SIR Rai

Sir-Rai

Shared 6 days ago

2.4K views

23:53

University of Sindh Past Papers 2026–2027 | Most Repeated & Important MCQs | Sindh University.

Sir-Rai

Shared 6 days ago

1.5K views

21:40

Sindh University Past Paper Solved MCQs | GK, Current Affairs, Pak Affairs & Math | 2026–27|Sir Rai

Sir-Rai

Shared 1 week ago

4K views

17:34

University of Sindh GK Past Papers | Last 5 Years MCQs | Sindh University Entry Test 2026–2027

Sir-Rai

Shared 1 week ago

2.6K views

20:40

Sindh University Test 2026–2027 🔥 | 100 Most Repeated GK Past Paper MCQs | SIR RAI

Sir-Rai

Shared 1 week ago

1.2K views

11:48

Sindh University Test Past Papers Solved 2026–2027 | Most Repeated MCQs | EDS, GK, English | Sir Rai

Sir-Rai

Shared 1 week ago

827 views

10:24

Math Past Papers PDF: FPSC, SPSC, Sindh University & NTS Exams

Sir-Rai

Shared 1 week ago

289 views

13:26

FPSC & SPSC Math Past Papers | Most Repeated Questions 2026-2027 ||Trick|| Moolchand rai

Sir-Rai

Shared 1 week ago

151 views

8:51

How to Solve Distance & Direction Questions | Math Past Papers (Sindh University, FPSC, SPSC)

Sir-Rai

Shared 1 week ago

228 views

11:02

Past Paper || FPSC || SPSC | Sindh University || Math Trick || By Moolchand Rai

Sir-Rai

Shared 2 weeks ago

197 views

13:28

Sindh University Entry Test Solved Past Papers | Complete Preparation || FPSC||SPSC

Sir-Rai

Shared 2 weeks ago

168 views

4:25

Sindh University Jamshoro Entry Test Secrets | Past Papers & Important Topics

Sir-Rai

Shared 2 weeks ago

180 views

4:11

How to Solve FPSC SPSC Math MCQs Fast | Past Papers Solved Series #03 | Competitive Exams Prep

Sir-Rai

Shared 2 weeks ago

117 views

3:55

FPSC & SPSC Math Past Papers Solved | Basic Arithmetic & Quantitative Reasoning | Video #02

Sir-Rai

Shared 2 weeks ago

98 views

3:35

How to Solve FPSC & SPSC Math MCQs Fast | Most Asked Questions 2026-2027.

Sir-Rai

Shared 2 weeks ago

265 views

1:14

Smart Learning Academy Khoski ||Building Knowledge || Shaping Futures

Sir-Rai

Shared 3 weeks ago

155 views

1:58

Kaise Kamyab Hue? 😱 | Smart Learning Academy Real Reality Revealed!

Sir-Rai

Shared 4 weeks ago

116 views

5:14

Master the Concept of Condensation | States of Matter | Sir Rai | Physics & Chemistry

Sir-Rai

Shared 3 months ago

80 views

2:49

Charles' Law Tricks & Concepts | Moolchand Sir Rai Learno hub Class 9 & 11

Sir-Rai

Shared 3 months ago

42 views

15:10

Basics of Physical Chemistry | Atoms, Subatomic Particles & Mole Concept || By Sir Rai

Sir-Rai

Shared 5 months ago

72 views

13:06

CHEMICAL BONDING|| Covalent Bond|| Complete Concepts || Tricks and PYQ||NEET||JEE 2026

Sir-Rai

Shared 5 months ago

46 views

15:43

CHEMICAL BONDING IN one Shot || Complete Concepts || Tricks and PYQ||NEET||JEE 2026

Sir-Rai

Shared 5 months ago

218 views

8:37

SIGNIFICANT FIGURES || CLASS Chapter 02|| Units and measurements || JEE MAINS ||NEET

Sir-Rai

Shared 5 months ago

63 views

6:04

Advanced Rules of Balancing Chemical Equations || Master Method for Class 9–12

Sir-Rai

Shared 6 months ago

47 views

10:49

How to Balance Chemical Equations Fast || Easy Method for Class 9, 10, 11 & 12 (Step by Step)

Sir-Rai

Shared 6 months ago

29 views

7:49

What is Ionization? 🤯 Complete Concepts + Examples | Physics/Chemistry

Sir-Rai

Shared 6 months ago

55 views

12:45

Naming Alkyne-IUPAC Nomenclature & Common Names// Unsaturated Hydrocarbon

Sir-Rai

Shared 6 months ago

38 views

3:57

Why Ice Floats & Lakes Freeze from the Top – Amazing Chemistry Explained.

Sir-Rai

Shared 6 months ago

33 views

14:33

Naming Alkenes || IUPAC Nomenclature Practice, substituents||EZ System|| Cycloalkene, chemistry

Sir-Rai

Shared 6 months ago

31 views

15:00

Alkene nomenclature & iupac naming | chemistry class xii video #02

Sir-Rai

Shared 6 months ago

22 views

14:06

Alkene Rules & IUPAC Naming | Class XII Chemistry

Sir-Rai

Shared 6 months ago

26 views

13:20

Isomers of Alkane || n-Alkane, Iso, Neo Explained || Chemistry Class 12 Super Shot.

Sir-Rai

Shared 6 months ago

33 views

15:09

Nomenclature of Alkane | Complete Rules, Family & Classification Explained

Sir-Rai

Shared 6 months ago

26 views

6:50

What is Alkane? Complete Classification Explained | Class 12 Chemistry One Shot.

Sir-Rai

Shared 6 months ago

51 views

7:40

Nomenclature of Alkene | Super Method One Shot Class | Video #01 | Easy Chemistry Trick.

Sir-Rai

Shared 6 months ago

38 views

3:40

Difference Between N-Alkane, Iso-Alkane & Neo-Alkane | Organic Chemistry.

Sir-Rai

Shared 8 months ago

38 views

3:11

IUPAC Naming of Closed-Chain Hydrocarbons | Class 12 Chemistry | One Shot Trick.

Sir-Rai

Shared 8 months ago

24 views

7:41

IUPAC Nomenclature of Alkanes – Step-by-Step Rules | Class 12 Chemistry | Part .03

Sir-Rai

Shared 8 months ago

26 views

15:17

IUPAC Naming of Alkanes 🔥 Complete Rules & Tricks || Class 11–12 Chemistry || One Shot.

Sir-Rai

Shared 8 months ago

25 views

9:43

IUPAC Rules for Naming Alkanes || Nomenclature of Alkanes || Class 11 Chemistry.

Sir-Rai

Shared 8 months ago

31 views

9:08

Hybridization of IF₇ Explained || sp³d³ Hybridization, Geometry, Shape & Bonding || Class 12.

Sir-Rai

Shared 8 months ago

44 views

9:03

Hybridization of SF₆ Explained || sp³d² Hybridization & Octahedral Geometry || Class 12 Chemistry.

Sir-Rai

Shared 8 months ago

57 views

5:46

PCl₅ Hybridization in 5 Minutes || sp³d Hybridization & Trigonal Bipyramidal Shape.

Sir-Rai

Shared 8 months ago

30 views

7:24

Why BF₃ is sp² Hybridized? || Geometry, Shape & Bond Angle || NEET||JEE.

Sir-Rai

Shared 8 months ago

64 views

5:20

Geometry of Water (H₂O) and Ammonia (NH₃) Explained | VSEPR Theory, Bond Angle, Lone Pair Effect.

Sir-Rai

Shared 8 months ago

45 views

10:50

How SP3 Hybridization Forms Tetrahedral Geometry || CH4 Structure.

Sir-Rai

Shared 8 months ago

69 views

22:43

Why CO₂ is Linear? || SP Hybridization with Examples || BeCl₂ & C₂H₂

Sir-Rai

Shared 8 months ago

40 views

17:25

Hybridization Trick & Concepts || sp, sp², sp³, sp³d, sp³d², sp³d³ || Part-2.

Sir-Rai

Shared 8 months ago

47 views