Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
भारत के नियंत्रक एवं महालेखा परीक्षक की नियुक्ति कौन करता है तथा उसका कार्यकाल कितना होता है? [उत्तर सीमा: 20 शब्द] [UKPSC 2016]
भारत के नियंत्रक एवं महालेखा परीक्षक की नियुक्ति राष्ट्रपति करते हैं और उनका कार्यकाल छह वर्ष होता है।
भारत के नियंत्रक एवं महालेखा परीक्षक की नियुक्ति राष्ट्रपति करते हैं और उनका कार्यकाल छह वर्ष होता है।
See lessWhat is the main difference between E-Government and E-Governance?
Difference Between E-Government and E-Governance Introduction In the context of digital transformation, both E-Government and E-Governance are crucial concepts that involve the use of technology to improve government operations and services. However, they represent different aspects of how technologRead more
Difference Between E-Government and E-Governance
Introduction In the context of digital transformation, both E-Government and E-Governance are crucial concepts that involve the use of technology to improve government operations and services. However, they represent different aspects of how technology interacts with governance and public administration.
E-Government
Definition: E-Government refers to the use of digital tools and technologies by government agencies to deliver services, information, and interactions to citizens, businesses, and other government entities. It focuses on improving the efficiency and effectiveness of government operations.
Key Characteristics:
Recent Example:
E-Governance
Definition: E-Governance encompasses a broader concept than E-Government. It involves the use of digital technologies not only to improve service delivery but also to enhance transparency, accountability, and citizen engagement in governance processes. It aims to transform how governance is practiced by integrating technology into the governance framework.
Key Characteristics:
Recent Example:
Key Differences
Conclusion While both E-Government and E-Governance utilize digital technologies to improve governmental functions, E-Government focuses on enhancing service delivery and administrative efficiency, whereas E-Governance encompasses a broader approach to improving overall governance, transparency, and citizen engagement. Recent examples highlight the ongoing evolution of both concepts in the digital age, demonstrating their significance in transforming public administration and governance practices.
See lessWhat is the composition of upper continental crust?
Composition of the Upper Continental Crust Introduction The upper continental crust is a fundamental component of Earth's lithosphere and plays a crucial role in geology, including tectonics, resource distribution, and the study of Earth's history. Its composition is distinct from the oceanic crustRead more
Composition of the Upper Continental Crust
Introduction The upper continental crust is a fundamental component of Earth’s lithosphere and plays a crucial role in geology, including tectonics, resource distribution, and the study of Earth’s history. Its composition is distinct from the oceanic crust and varies significantly in different geological settings.
Basic Composition The upper continental crust is primarily composed of silicic (felsic) rocks, which include the following key components:
Recent Examples and Developments
Conclusion The upper continental crust is predominantly composed of granitic, sedimentary, and metamorphic rocks, reflecting its complex geological history and varying environmental conditions. Recent geological studies and projects continue to enhance our understanding of its composition, contributing to fields such as resource management, tectonics, and environmental science. The diverse composition of the upper continental crust underscores its significance in both scientific research and practical applications.
See lessWhich portal provides a single window access to the information and services provided by the Indian Government for citizens and other stakeholders?
Single Window Portal for Indian Government Services Introduction The Indian government has established various digital platforms to streamline access to information and services for citizens and other stakeholders. Among these, the Government of India’s Digital Portal, the commonly known as India.goRead more
Single Window Portal for Indian Government Services
Introduction The Indian government has established various digital platforms to streamline access to information and services for citizens and other stakeholders. Among these, the Government of India’s Digital Portal, the commonly known as India.gov.in, serves as the primary single-window portal.
Features of India.gov.in
Recent Examples and Developments
Conclusion India.gov.in stands out as a crucial single-window portal, offering comprehensive access to a myriad of government services and information. Its role in facilitating seamless interaction between the government and citizens is pivotal in promoting transparency, efficiency, and public engagement. The portal continues to evolve, incorporating new technologies and responding to contemporary challenges, thus reaffirming its significance in the digital governance landscape of India.
See lessपौधे के 'भ्रूणपोष (एण्डोस्पर्म)' पर एक टिप्पणी लिखिए।
भ्रूणपोष (एण्डोस्पर्म) पर टिप्पणी परिचय भ्रूणपोष (एण्डोस्पर्म) पौधों के बीजों में पाया जाने वाला एक महत्वपूर्ण ऊतक है, जो बीज के अंकुरण और भ्रूण के विकास के लिए आवश्यक पोषक तत्व प्रदान करता है। यह ऊतक बीज के भीतर भ्रूण और बीज के अन्य भागों के बीच पोषण की भूमिका निभाता है। भ्रूणपोष का निर्माण भ्रूणपोRead more
भ्रूणपोष (एण्डोस्पर्म) पर टिप्पणी
परिचय भ्रूणपोष (एण्डोस्पर्म) पौधों के बीजों में पाया जाने वाला एक महत्वपूर्ण ऊतक है, जो बीज के अंकुरण और भ्रूण के विकास के लिए आवश्यक पोषक तत्व प्रदान करता है। यह ऊतक बीज के भीतर भ्रूण और बीज के अन्य भागों के बीच पोषण की भूमिका निभाता है।
भ्रूणपोष का निर्माण भ्रूणपोष का निर्माण ‘डबल फर्टिलाइजेशन’ (डबल निषेचन) की प्रक्रिया के माध्यम से होता है, जिसमें एक शुक्राणु अंडाणु के साथ मिलकर जाईगोट (zygote) बनाता है और दूसरा शुक्राणु दो पोलर नाभिकों के साथ मिलकर त्रैविक भ्रूणपोष (triploid endosperm) का निर्माण करता है। भ्रूणपोष के निर्माण की प्रक्रिया के आधार पर इसे तीन मुख्य प्रकारों में वर्गीकृत किया जा सकता है:
भ्रूणपोष के कार्य
हाल की उदाहरण और अनुप्रयोग
निष्कर्ष भ्रूणपोष बीज विज्ञान का एक महत्वपूर्ण घटक है, जो भ्रूण के विकास और अंकुरण के लिए आवश्यक पोषक तत्वों का संचित करता है। इसके पोषण संबंधी गुण और बीज विकास में इसकी भूमिका इसे पौधों और कृषि अनुसंधान में महत्वपूर्ण बनाती है। हाल के तकनीकी और जैविक परिवर्तनों से भ्रूणपोष की क्षमता और उपयोगिता को बेहतर बनाया जा रहा है, जिससे वैश्विक पोषण और फसल उत्पादन में सुधार हो रहा है।
See lessWrite a note on 'endosperm' of plant.
Endosperm in Plants Introduction Endosperm is a vital tissue in the seeds of flowering plants (angiosperms) that plays a crucial role in the development and nutrition of the seedling during its early stages of growth. It is formed following fertilization and is crucial for seed development and germiRead more
Endosperm in Plants
Introduction Endosperm is a vital tissue in the seeds of flowering plants (angiosperms) that plays a crucial role in the development and nutrition of the seedling during its early stages of growth. It is formed following fertilization and is crucial for seed development and germination.
Formation and Types Endosperm is formed through a process called double fertilization, where one sperm cell fertilizes the egg cell to form the zygote, and another sperm cell fuses with two polar nuclei to form the triploid endosperm. There are three main types of endosperm based on their development:
Functions of Endosperm
Recent Examples and Applications
Conclusion The endosperm is a fundamental component of seed biology that supports the growth and development of the embryo. Its role in nutrient storage, seed development, and germination makes it a key focus in plant science and agricultural research. Recent innovations in genetic engineering and biofortification highlight the endosperm’s importance in addressing global nutritional challenges and improving crop productivity.
See lessविरंजक चूर्ण के उपयोग लिखिए।
विरंजक चूर्ण एक प्रकार का आयुर्वेदिक औषधि है जिसका उपयोग विभिन्न स्वास्थ्य समस्याओं के उपचार के लिए किया जाता है। यहाँ कुछ प्रमुख उपयोग दिए गए हैं: पाचन सुधारना: विरंजक चूर्ण पाचन तंत्र को सुधारने और पेट संबंधी समस्याओं जैसे कि अपच, गैस, और कब्ज को दूर करने में मदद करता है। सर्वांगिक शारीरिक बलवर्धनRead more
विरंजक चूर्ण एक प्रकार का आयुर्वेदिक औषधि है जिसका उपयोग विभिन्न स्वास्थ्य समस्याओं के उपचार के लिए किया जाता है। यहाँ कुछ प्रमुख उपयोग दिए गए हैं:
सदाहरण के लिए, इसे आप गर्म पानी के साथ ले सकते हैं, या चिकित्सक के निर्देशानुसार उपयोग कर सकते हैं। किसी भी औषधि का उपयोग करने से पहले अपने चिकित्सक से परामर्श करना हमेशा उचित होता है।
See lessWrite the uses of bleaching powder.
Uses of Bleaching Powder Bleaching powder, chemically known as calcium oxychloride (Ca(OCl)₂), is a widely used compound with various industrial, domestic, and environmental applications. Its versatility stems from its properties as a strong oxidizing agent and disinfectant. Here’s a detailed look aRead more
Uses of Bleaching Powder
Bleaching powder, chemically known as calcium oxychloride (Ca(OCl)₂), is a widely used compound with various industrial, domestic, and environmental applications. Its versatility stems from its properties as a strong oxidizing agent and disinfectant. Here’s a detailed look at its uses, including recent examples:
1. Water Treatment and Purification
Bleaching powder is extensively used for disinfection of drinking water and wastewater treatment. Its primary function in this context is to kill bacteria and other microorganisms, making water safe for consumption and use.
2. Bleaching Agent in the Textiles and Paper Industry
Bleaching powder is used in the textile industry and the paper industry to bleach fabrics and paper. It helps in removing color and impurities from these materials, ensuring a clean and uniform appearance.
3. Disinfectant and Sanitizer
In addition to water treatment, bleaching powder serves as an effective disinfectant and sanitizer for various surfaces, including floors and equipment. It is commonly used in hospitals, kitchens, and public places to maintain hygiene.
4. Agricultural Applications
Bleaching powder is used in agriculture for soil sterilization and fungal control. It helps in controlling soil-borne pathogens and diseases, thereby improving crop yield and health.
5. Manufacturing and Chemical Industry
In the chemical industry, bleaching powder is used as a raw material for the production of various chemicals. It acts as an oxidizing agent in chemical reactions.
6. Laboratory Applications
In laboratories, bleaching powder is used for oxidizing reactions and analysis due to its strong oxidizing properties. It is often used in chemical tests and processes.
Conclusion
Bleaching powder’s diverse applications—ranging from water purification and textile bleaching to agricultural use and chemical manufacturing—demonstrate its importance across various fields. Its role in disinfection and sanitation, especially highlighted during recent health crises, underscores its value in maintaining public health and hygiene.
See lessNH, एक लुईस क्षार और BF, एक लुईस अम्ल क्यों है? समझाइए।
NH₃ एक लुईस क्षार और BF₃ एक लुईस अम्ल क्यों है? NH₃ (अमोनिया) को लुईस क्षार और BF₃ (बोरोन ट्राईफ्लोराइड) को लुईस अम्ल के रूप में क्यों माना जाता है, यह समझने के लिए हमें लुईस अम्ल-क्षार सिद्धांत की समीक्षा करनी होगी। इस सिद्धांत के अनुसार: लुईस क्षार: एक पदार्थ जो एक जोड़ी इलेक्ट्रॉन दान कर सकता है।Read more
NH₃ एक लुईस क्षार और BF₃ एक लुईस अम्ल क्यों है?
NH₃ (अमोनिया) को लुईस क्षार और BF₃ (बोरोन ट्राईफ्लोराइड) को लुईस अम्ल के रूप में क्यों माना जाता है, यह समझने के लिए हमें लुईस अम्ल-क्षार सिद्धांत की समीक्षा करनी होगी। इस सिद्धांत के अनुसार:
NH₃ (अमोनिया) एक लुईस क्षार
अमोनिया (NH₃) लुईस क्षार के रूप में कार्य करता है क्योंकि इसमें नाइट्रोजन परमाणु पर एक अकेला इलेक्ट्रॉन युग्म होता है जिसे वह दान कर सकता है। इसके कारण:
हालिया उदाहरण: यूरिया का निर्माण अमोनिया और कार्बन डाइऑक्साइड से होता है। इस प्रक्रिया में NH₃ एक लुईस क्षार के रूप में कार्य करता है, जो अपने इलेक्ट्रॉन युग्म को कार्बन डाइऑक्साइड के साथ जोड़कर एक नया यौगिक बनाता है। यह उर्वरक उत्पादन में महत्वपूर्ण है।
BF₃ (बोरोन ट्राईफ्लोराइड) एक लुईस अम्ल
बोरोन ट्राईफ्लोराइड (BF₃) लुईस अम्ल के रूप में कार्य करता है क्योंकि इसमें आठ इलेक्ट्रॉन नहीं होते और यह इलेक्ट्रॉन युग्म स्वीकार कर सकता है। इसके कारण:
हालिया उदाहरण: फ्राइडल-क्राफ्ट्स अल्कीलेशन और एसीलेशन प्रतिक्रियाओं में BF₃ का उपयोग होता है। इन प्रतिक्रियाओं में BF₃ एक लुईस अम्ल के रूप में कार्य करता है, जो इलेक्ट्रॉन युग्म स्वीकार करके एक नई रसायनिक बंधन की प्रक्रिया को उत्प्रेरित करता है। यह रसायन उद्योग में विशेष रूप से महत्वपूर्ण है।
निष्कर्ष
सारांश में, NH₃ एक लुईस क्षार है क्योंकि इसमें एक अकेला इलेक्ट्रॉन युग्म होता है जिसे वह दान कर सकता है, जबकि BF₃ एक लुईस अम्ल है क्योंकि इसमें इलेक्ट्रॉन की कमी होती है और यह एक इलेक्ट्रॉन युग्म स्वीकार कर सकता है। यह लुईस अम्ल-क्षार सिद्धांत रसायन विज्ञान में विभिन्न प्रतिक्रियाओं और प्रक्रियाओं की समझ के लिए महत्वपूर्ण है।
See lessWhy is NH, a Lewis base and BF, a Lewis acid? Explain.
Understanding NH₃ as a Lewis Base and BF₃ as a Lewis Acid In the context of Lewis acid-base theory, NH₃ (Ammonia) acts as a Lewis base, and BF₃ (Boron Trifluoride) acts as a Lewis acid. This classification is based on their ability to donate or accept electron pairs, respectively. Let's explore thisRead more
Understanding NH₃ as a Lewis Base and BF₃ as a Lewis Acid
In the context of Lewis acid-base theory, NH₃ (Ammonia) acts as a Lewis base, and BF₃ (Boron Trifluoride) acts as a Lewis acid. This classification is based on their ability to donate or accept electron pairs, respectively. Let’s explore this with some recent examples and a detailed explanation.
Lewis Acid-Base Theory
NH₃ as a Lewis Base
Ammonia (NH₃) is classified as a Lewis base because it has a lone pair of electrons on the nitrogen atom that it can donate to a Lewis acid. Here’s why:
Recent Example: In the synthesis of urea from ammonia and carbon dioxide, NH₃ acts as a Lewis base by donating its lone pair to form a complex with carbon dioxide. This reaction is crucial in agriculture for producing fertilizers, which are essential for modern crop production.
BF₃ as a Lewis Acid
Boron Trifluoride (BF₃) is classified as a Lewis acid because it has an incomplete octet and can accept a pair of electrons. Here’s why:
Recent Example: BF₃ is often used in Friedel-Crafts alkylation and acylation reactions in organic synthesis. In these reactions, BF₃ acts as a Lewis acid by accepting electron pairs from the aromatic compound or other reactants, facilitating the formation of new carbon-carbon bonds. This is particularly significant in the pharmaceutical industry for synthesizing complex organic molecules.
Conclusion
To summarize, NH₃ is a Lewis base due to its ability to donate a lone pair of electrons, whereas BF₃ is a Lewis acid because it can accept electron pairs to complete its electron deficiency. These properties are not only fundamental to understanding chemical reactivity but also have practical applications in various chemical processes and industrial reactions.
See less