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हाइड्रोकार्बन नोट्स

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  Prepared by : SHAHBAZ SIDDIQUI UTTARAKHAND BOARD (2023-2024) THE SIDDIQUI ACADEMY® NOTES ARE SUBJECTED TO COPYRIGHT. हाइड्रोकार्बन हाइड्रोजन और कार्बन से बने यौगिकों को हाइड्रोकार्बन (hydrocarbon in Hindi) कहते हैं। यह संतृप्त तथा असंतृप्त दोनों प्रकार के होते हैं। हमारे दैनिक जीवन में हाइड्रोकार्बन का महत्वपूर्ण योगदान है। जैसे – एलपीजी और सीएनजी आदि ईंधन के रूप में प्रयोग में लाए जाने वाले हाइड्रोकार्बन हैं। एलपीजी द्रवित पेट्रोलियम का संक्षिप्त रूप है जबकि सीएनजी संघनित प्राकृतिक गैस का संक्षिप्त रूप है। हाइड्रोकार्बन का वर्गीकरण हाइड्रोकार्बन विभिन्न प्रकार के होते हैं। हाइड्रोकार्बन का कार्बन-कार्बन (C—C) आबंध की प्रकृति के आधार पर तीन वर्गों में वर्गीकरण किया गया है। 1. संतृप्त हाइड्रोकार्बन 2. असंतृप्त हाइड्रोकार्बन 3. एरोमैटिक हाइड्रोकार्बन 1. संतृप्त हाइड्रोकार्बन वह हाइड्रोकार्बन जिनमें कार्बन परमाणु परस्पर एकल बंधों द्वारा जुड़े होते हैं। तब इस प्रकार के हाइड्रोकार्बनों को संतृप्त हाइड्रोकार्बन कहते हैं। जैसे – मेथेन, एथेन, प्रोपेन तथा ब्यूटेन आदि। 2. असंतृप्त हाइड्रोक...
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English Important

  Why did Lencho say the raindrops were like ‘new coins’? Answer: Lencho compared the raindrops to ‘new coins’ – the big drops as ten-cent pieces and the little ones as fives. As his crops were ready for harvest, he hoped that the rains would bring him prosperity; so he felt the raindrops were like ‘new coins’. Question 4: What were Lencho’s feelings when the hail stopped? Answer: After the hailstones stopped, Lencho’s soul was filled with grief and dismay. He realised that everything was ruined by the hailstorm and nothing was left to feed his family for the entire year. He could visualize the bleak future of his family. Who read the letter? Answer: The postmaster read Lencho’s letter addressed to God. Who or what did Lencho have faith in? What did he do? Answer: Lencho had a strong faith in God. He believed that God’s eyes see everything, even what is deep in one’s conscience. Hence, he wrote a letter to God citing that he needed a hundred pesos to sow his field that was destroye...
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Economics

  1. Development of a country can generally be determined by its per capita income its average literacy level health status of its people all of the above Answer:  d. all of the above 2. Which of the following neighbouring countries has better performance in terms of human development than India? Bangladesh Sri Lanka Nepal Pakistan Answer:  b. Sri Lanka 3. Assume there are four families in a country. The average per capita income of these families is Rs. 5000. If the income of three families is Rs. 4,000, Rs. 7,000 and Rs. 3,000, respectively, what is the income of the fourth family? Rs. 7,500 Rs. 3,000 Rs. 2,000 Rs. 6,000 Answer:  d. Rs. 6,000 (4000+7000+3000+x) ÷ 4 = 5000 14000+x = 5000 × 4 x = 20000-14000 x = 6000 In what respects is the criterion used by the UNDP for measuring development different from the one used by the World Bank? Answer:  The criterion used by UNDP is different from the one used by the World Bank because UNDP compares countries based on...
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