The atom is the basic unit of matter that makes up all physical objects. Atoms are incredibly small; they are measured in angstroms, which are one ten-billionth of a meter. There are trillions of atoms in just a single drop of water. Atoms are made up of three smaller particles: protons, neutrons, and electrons. Protons […]
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What is radical in chemistry Free Radical Is Defined As Any Atom Or Molecule Possessing Unpaired Electrons. A Free Radical As Any Molecular Species Capable Of Independent Existence With An Unpaired Electron In Atomic Orbital. So, these atoms, called free radicals, scavenge the body to seek out other electrons so they can become a
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Who is father of chemistry
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Q Dalton’s atomic Theory Class 9 📚 Q drawbacks of dalton atomic theory class 9📚Q limitations of dalton’s atomic theory class 9📚Q dalton atomic theory class 9 ncert • Dalton’s Atomic Theory The idea that all matter consists of a large number of individual small particles originally originated from early Indian and Greek philosophers. The
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The reaction of two or more substances to give the products is governed by certain laws . These laws are called laws of chemical combination . On the basis of the results of experiments carried out by certain laws of chemical combination concerning the composition of matter and chemical reactions were formulated These five laws
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first law or point rule or junction rule or current rule : – According to this law in electric circuit the algebraic sum of all current unceting at a point is equal to zero i.e Σ i = 0 This law is based on charge conservation this is valid for AC as well as DC
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Q 1 The grandmother could relate to the central character of the story Kashi Yatre as : ( i ) both were old and uneducated . ( ii ) both had granddaughters who read to them . ( iii ) both had a strong desire to visit Kashi . ( iv ) both were determined
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Q Do you agree with Harold’s parents decision of hiding from him the fact that his father was a boxer? Why/Why not? Cbse English class 9th ans:- Yes , they did the right thing by hiding the fact from Harold because they did not know how he would react . They felt they were saving
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Ans:- Yes , John was a hypocrite because on one hand , he was making fun of the romantic stories written in best – sellers but on the other hand , he himself had had a romantic marriage . He had followed the girl he had seen in a train to her hometown , changing
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NEWTON’S THIRD LAW OF MOTION If a finger wearing roller skates stands facing a wall and pushes the wall with his hands , the finger finds himself moving backwards , away from the wall ( see Figure 26 ) . It appears as if the wall also pushes the finger away . Actually , when
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Q. During an experiment , a signal from a spaceship reached the ground station in five minutes . What was the distance of the spaceship from the ground station ? The signal travels at the speed of light , that is , 3 x 10⁸ m s⁻¹ . we know that: speed = Distance travelled
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Difference between speed and velocity . Speed velocity 1 . Speed of a body is the distance travelled by it per unit time 1. Velocity of a body is the distance travelled by it per unit time in a given direction 2 . In speed , the direction of motion of the body is not
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उत्तर : – भारतसंघ की इकाइयाँ दो वर्गो में बँटी है- 1. राज्य और 2 . केन्द्रशासित क्षेत्र । राज्यों की कार्यपालिका का प्रमुख राज्यपाल होता है । राज्य की कार्यपालिका -शक्ति राज्यपाल में निहित है जो उसका प्रयोग संविधान के अनुसार या अपने अधीनस्थ पदाधिकारियों के द्वारा करता है । चूँकि राज्य की कार्यपालिका
प्रश्न : – राज्य सरकार में राज्यपाल की भूमिका का आलोचनात्मक परीक्षण कीजिए । Read More »
उत्तर : – राष्ट्रीय स्वतंत्रता आंदोलन के दौरान अँग्रेज इस बात की . अच्छी तरह समझ गए कि अब अधिक दिनों तक भारत को गुलाम बनाए रखना असंभव है । इसलिए उनलोगों ने सत्ता हस्तांतरित करने एवं भारत को स्वतंत्र करने का निश्चय किया । द्वितीय विश्वयुद्ध के पश्चात् इंगलैंड में होनेवाले चुनावों में ‘
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भारतीय संविधान की प्रस्तावना के महत्व एवं मुख्य सिद्धान्तों का वर्णन करें
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गयासुद्दीन बलबन – कार्य ,सिद्धांत, उपलब्धियां , लौह रक्त नीति , चरित्र ,मूल्यांकन बलबन का शासन काल सल्तनत के स्थिरीकरण का काल था । सल्तनत को अनेक संकटों से गुजरना पड़ा था । ये संकट सभी क्षेत्रों में थे ; जैसे , सल्तनत का राजनीतिक संगठन राजपद की दुर्बलता के कारण प्रभावहीन हो गया था
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उत्तर : – इल्तुतमिश इलबर जाति का तुर्क था । उसका पिता इलक खाँ एक कबायली सरदार था । उसका राजनीतिक जीवन ऐबक के दास के रूप में आरम्भ हुआ लेकिन मुहम्मद गौरी की अनुशंसा पर ऐबक ने उसे दासता से मुक्त कर दिया था । आगे चलकर ऐबक ने अपनी एक बेटी का विवाह
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मुईजुद्दीन मुहम्मद गोरो के गुलामों में सबसे योग्य और विश्वसनीय कुतुबुद्दीन ऐबक था । कुतुबुद्दीन ऐबक नामक तुर्क जनजाति का था । वह तुर्किस्तान का रहनेवाला था । बचपन में ही दास के रूप में वह नैशापुर के बाजार में लाया गया । वहाँ उसे काजी फखरूद्दीन अब्दुल अजीज कूफी ने खरीद लिया । काजी
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