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Class 12 Extra questions English Flamingo Chapter 3 Deep Water by William Douglas

Class 12 Extra questions                    English Flamingo Chapter 3                                                                           Deep Water by William Douglas 1. Q: What initial event led to Douglas's fear of water?    A: Douglas's fear of water began when he was thrown into the deep end of the Y.M.C.A. pool by a bully, nearly causing him to drown.   2. Q: How did Douglas’s early experiences at the beach contribute to his fear?    A: As a child, Douglas had been knocked down by waves at a beach in California, which left him frightened of water. 3. Q: Why did Douglas decide to learn swimming despite his fear?    A: Douglas decided to learn swimming to overcome his debilitating fear and regain confidenc...
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"Study With Mayank Sir" Chemistry MCQ Chapter 2 Electrochemistry

"Study With Mayank Sir" - To be ahead in exam room  WA - 8290535520 Youtube - https://www.youtube.com/@dasklibro Chapter–2 : Electrochemistry (विद्युत रसायन) Question Type: MCQ (Application Based) Each Question: 0.5 Mark Total Questions: 50 Total Marks: 25 Q1. In Daniell cell, electrons flow from — डेनियल सेल में इलेक्ट्रॉनों का प्रवाह होता है — A) Cathode to anode B) Salt bridge C) Zinc to copper electrode ✅ D) Copper to zinc electrode Answer: C Explanation: Zinc undergoes oxidation and releases electrons. Q2. If oxidation occurs at an electrode, that electrode acts as — जिस इलेक्ट्रोड पर ऑक्सीकरण होता है, वह होता है — A) Cathode B) Anode ✅ C) Salt bridge D) Electrolyte Answer: B Explanation: Oxidation always occurs at anode. Q3. Unit of standard electrode potential is — मानक इलेक्ट्रोड विभव की इकाई है — A) Ampere B) Ohm C) Volt ✅ D) Coulomb Answer: C Explanation: Electrode potential is a potential difference. Q4. EMF of a cell is maximum when — किस स्थिति में सेल का EMF अधि...
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"Study With Mayank Sir" Chemistry MCQ Chapter 1 Solution

"Study With Mayank Sir" - To be on the top of the table  WA - 8290535520 Youtube - https://www.youtube.com/@dasklibro Chapter–1 : Solutions (विलयन) Question Type: MCQ Each Question: 0.5 Mark Total Questions: 50 Q1. A solution is a / विलयन होता है — A) Pure substance / शुद्ध पदार्थ B) Homogeneous mixture / समांगी मिश्रण ✅ C) Heterogeneous mixture / विषमांगी मिश्रण D) Colloid / कोलॉइड Answer: B Explanation: A solution is a homogeneous mixture of solute and solvent. Q2. The component present in larger amount is called / अधिक मात्रा में उपस्थित घटक कहलाता है — A) Solute / विलेय B) Solvent / विलायक ✅ C) Dispersed phase / विसरित अवस्था D) Medium / माध्यम Answer: B Explanation: Solvent is present in larger amount in a solution. Q3. Solid–solid solution example / ठोस–ठोस विलयन का उदाहरण — A) Air / वायु B) Brass / पीतल ✅ C) Soda water / सोडा वाटर D) Tincture iodine / आयोडीन टिंचर Answer: B Explanation: Brass is a solid solution of copper and zinc. Q4. Liquid in liquid solution / द्रव–...
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"Study With Mayank Sir" Chemistry Fill in the Blanks chapter 3 Chemical Kinetics

"Study With Mayank Sir" - To get 100% marks WA - 8290535520 Youtube - https://www.youtube.com/@dasklibro Chapter 3 – Chemical Kinetics Fill in the Blanks (Skill-Based) Class 12 | NCERT only Marks: 0.5 × 50 = 25 Marks Q1. The rate of a chemical reaction is defined as change in __________ per unit time. रासायनिक अभिक्रिया की दर को प्रति इकाई समय __________ में परिवर्तन के रूप में परिभाषित किया जाता है। Answer: concentration / सांद्रता Explanation: Rate depends on change in concentration of reactants or products per unit time. Q2. The unit of rate of reaction is __________. अभिक्रिया की दर की इकाई __________ होती है। Answer: mol L⁻¹ s⁻¹ / मोल लीटर⁻¹ सेकंड⁻¹ Explanation: Rate = concentration ÷ time. Q3. Rate of reaction generally __________ with increase in concentration of reactants. अभिकारकों की सांद्रता बढ़ाने पर अभिक्रिया की दर सामान्यतः __________ जाती है। Answer: increases / बढ़ती है Explanation: Higher concentration leads to more effective collisions. Q4. The rate law expr...
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"Study With Mayank Sir" Chemisty Fill in the blanks Chapter 9 Amine

"Study With Mayank Sir" - To maximise your potential  WA - 8290535520 Youtube - https://www.youtube.com/@dasklibro Chapter 9 – Amines (NCERT Class 12) Marks: 0.5 each Total Questions: 50 × 0.5 = 25 Marks Q1. Amines are derivatives of ________. अमीन ________ के व्युत्पन्न होते हैं। Answer: Ammonia / अमोनिया Explanation: Amines are formed by replacing one or more hydrogen atoms of ammonia. Q2. In amines, nitrogen atom is ________ hybridised. अमीन में नाइट्रोजन परमाणु ________ संकरणित होता है। Answer: sp³ / sp³ Explanation: Nitrogen forms three sigma bonds and has one lone pair, hence sp³ hybridisation. Q3. The general formula of primary amine is ________. प्राथमिक अमीन का सामान्य सूत्र ________ है। Answer: R–NH₂ / R–NH₂ Explanation: One alkyl or aryl group replaces one hydrogen of ammonia. Q4. The geometry of amines is ________. अमीन की ज्यामिति ________ होती है। Answer: Pyramidal / पिरामिडीय Explanation: Due to lone pair on nitrogen, amines show pyramidal geometry. Q5. Amines ...
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"Study With Mayank Sir" Chemistry Fill in the blanks chapter 10 Biomolecules

"Study with Mayank Sir" - To get the 100 out of 100 YouTube - https://www.youtube.com/@dasklibro WA - 8290535520 📘 Chapter 10 – Biomolecules 📝 Fill in the Blanks (Knowledge Based) Class 12 | NCERT | RBSE aligned 🔹 Fill in the Blanks (0.5 × 50 = 25 Marks) Q1. Carbohydrates are chemically defined as polyhydroxy ________ or ________. कार्बोहाइड्रेट को रासायनिक रूप से बहु-हाइड्रॉक्सी ________ या ________ के रूप में परिभाषित किया जाता है। Answer: aldehydes, ketones / एल्डिहाइड, कीटोन Explanation: NCERT defines carbohydrates as polyhydroxy aldehydes or ketones or substances yielding them on hydrolysis. Q2. Glucose is an example of a ________ monosaccharide. ग्लूकोज़ एक ________ मोनोसैकराइड का उदाहरण है। Answer: aldohexose / एल्डोहेक्सोज़ Explanation: Glucose contains an aldehyde group and six carbon atoms. Q3. Fructose is classified as a ________ sugar. फ्रक्टोज़ को ________ शर्करा के रूप में वर्गीकृत किया जाता है। Answer: ketohexose / कीटोहेक्सोज़ Explanation: Fructose contains...
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