Gyankatta

Online Examination, Speed and Efficiency

Uncategorized

Class 12 Physics Notes – Chapter 3: Current Electricity

Class 12 Physics – Chapter 3: Current Electricity Current Electricity deals with the flow of electric charges through conductors and the laws governing electric circuits. This chapter is extremely important for CBSE Boards and competitive exams like JEE and NEET….

Class 12 Physics: Electrostatic Potential and Capacitance

NCERT Physics Class 12 Chapter 2 Electrostatic Potential and Capacitance Complete Notes • Important Formulae • Board Exam Revision Chapter Overview This chapter explains how electric charges create electric potential, how energy is stored in electric fields, and how capacitors…

Uncategorized

Class 9 – Mathematics Question Paper

Time: 3 Hours Maximum Marks: 80 Section A – MCQs (1 × 20 = 20 Marks) 1. Rationalize: 1 / √5    a) √5    b) √5 / 5    c) 5√5    d) 1/5 2. (2³)² =    a) 2⁵    b) 2⁶    c) 4⁶…

Uncategorized

Class 8 – Mathematics Question Paper

Time: 3 Hours Maximum Marks: 80 Section A – MCQs (1 × 10 = 10 Marks) 1. The additive inverse of −7/9 is:    a) 7/9    b) −7/9    c) 9/7    d) 0 2. 2³ × 2⁴ =    a) 2⁷    b) 4⁷…

Uncategorized

Class 7 – Mathematics Question Paper

Time: 3 Hours Maximum Marks: 80 Section A – MCQs (1 × 10 = 10 Marks) Choose the correct option: 1. The value of (–8) + 5 is:    a) 13    b) –3    c) 3    d) –13 2. The reciprocal of…

Uncategorized

भोजपुरी और मराठी

भोजपुरी और मराठी दोनों ही इंडो-आर्यन (हिन्द-आर्य) भाषा परिवार से आती हैं। जहाँ भोजपुरी का विकास ‘मागधी प्राकृत’ से हुआ है, वहीं मराठी ‘महाराष्ट्री प्राकृत’ से निकली है। अलग-अलग शाखाओं से होने के बावजूद, संस्कृत इनकी साझा पूर्वज है, जिसके…

Uncategorized

Class 11 Chemistry: Redox Reactions

Question 1: Which of the following statement(s) is/are not true about the following decomposition reaction? 2KClO3 → 2KCl + 3O2 Question 2: Identify disproportionation reaction Question 3: Which of the following arrangements represents an increasing oxidation number of the central…

Handling Nonstop Talkers: Causes and Strategies

This is a very common and often exhausting dynamic. Dealing with someone who talks incessantly without picking up on social cues can leave you feeling drained, unheard, and trapped. There are actually specific terms and psychological reasons for this behavior….

Uncategorized

JEE Advanced Numericals on VOLUME STRENGTH OF HYDROGEN PEROXIDE

Problem 1: Complex H₂O₂ Decomposition with Air Statement:10 mL of a hydrogen peroxide solution is mixed with 350 mL of air containing 21% O₂ by volume. After complete catalytic decomposition of H₂O₂, the total volume of gases at the same…

Uncategorized

Class 11 Chemistry: CHEMICAL BONDING AND MOLECULAR STRUCTURE (Only 4.1)

4. CHEMICAL BONDING AND MOLECULAR STRUCTURE 4.1 KÖssel–Lewis Approach to Chemical Bonding 4.1.1 Octet Rule 4.1.2 Covalent Bond 4.1.3 Lewis Representation of Simple Molecules (the Lewis Structures) 4.1.4 Formal Charge 4.1.5 Limitations of the Octet Rule Q1 When you put…

Class 8 Science: Combustion and Flame Questions

Combustion and Flame – Interactive Questions 🔥 Combustion & Flame 🔥 Class 8 Science – Interactive Conceptual Questions Click on “Show Answer” to reveal detailed explanations Question 1 A student conducted an experiment with three candles of identical size placed…

Measurement of ∆U and ∆H

Class 11 Chemistry: Thermodynamics Conceptual Questions on Measurement of ΔU and ΔH 1. What is the fundamental physical significance of the change in internal energy (ΔU) of a system? The change in internal energy (ΔU) represents the total change in…

Uncategorized

Class V Sanskrit संस्कृत-व्याकरण

संस्कृत-व्याकरण अभ्यासSanskrit Grammar Practice क्र. प्रश्न – कोष्ठकात् समुचितं पदं चित्वा रिक्तस्थानानि पूरयत 1 रोहन : समयेन विद्यालयं गच्छति | (गच्छति / गच्छन्ति / गच्छामि) 2 सीता : प्रतिदिनं पठति | (पठति / पठन्ति / पठामि) 3 अहं प्रातः उत्तिष्ठामि…

Uncategorized

NEET Self-Evaluation Plan Structured self-assessment for NEET preparation Objective To monitor your NEET preparation progress, identify weak areas, improve accuracy, and optimize time management through structured self-evaluation. Self-Evaluation Phases Phase Duration Focus Baseline Evaluation Week 1 Full-length mock test (3…

Uncategorized

GYANKATTA ONLINE LITERARY MARATHON 2025 Fully online: Google Meet • WhatsApp • Email • Gyankatta Overview & Objective A 6-hour online event to assess reading comprehension, vocabulary, spelling and word meaning across classes. All tests hosted on Gyankatta. Interaction via…

Uncategorized

Squares and Pythagorean Triplets

Class 8 Math – Squares & Pythagorean Triplets Class 8 Mathematics Squares and Pythagorean Triplets – Multiple Choice Questions Q.No. Question Options 1 Is (1, 2, 3) a Pythagorean triplet? a) Yes b) No c) Sometimes d) Cannot determine 2…

Uncategorized

Class 8 Math Exponents

Class 8 Exponents MCQs Class 8 Mathematics – Exponents Multiple Choice Questions Q.No. Question Options 1 What is the value of 70? a) 0 b) 1 c) 7 d) 1/7 2 What is the value of 40 × 43? a)…

Uncategorized

HCF

Class 6 HCF Practice Questions Highest Common Factor (HCF) Practice Questions Class 6 Mathematics Q. No. Question Answer 1 Find the HCF of 24 and 36. HCF = 1224 = 2×2×2×3, 36 = 2×2×3×3, HCF = 2×2×3 = 12 2…