{"id":23853,"date":"2024-04-15T06:39:06","date_gmt":"2024-04-15T06:39:06","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=23853"},"modified":"2024-04-15T06:39:06","modified_gmt":"2024-04-15T06:39:06","slug":"the-product-9-nitroanthracene-is-obtained-from-anthracene-by-the-action-of-a-nitric-acid-and-acetic-anhydride-b-nitric-acid-and-ethyl-alcohol-c-nitric-acid-and-acetic-acid-d-nitric-acid-in-excess","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-product-9-nitroanthracene-is-obtained-from-anthracene-by-the-action-of-a-nitric-acid-and-acetic-anhydride-b-nitric-acid-and-ethyl-alcohol-c-nitric-acid-and-acetic-acid-d-nitric-acid-in-excess\/","title":{"rendered":"The product, 9-nitroanthracene is obtained from anthracene by the action of A. Nitric acid and acetic anhydride B. Nitric acid and ethyl alcohol C. Nitric acid and acetic acid D. Nitric acid in excess"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a9a49fbdbf04\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    Nitric acid and acetic anhydride                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Nitric acid and ethyl alcohol                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Nitric acid and acetic acid                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Nitric acid in excess                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is: A. Nitric acid and acetic anhydride.<\/p>\n<p>Nitro groups are typically introduced into aromatic rings by the action of nitric acid. In the presence of a dehydrating agent such as acetic anhydride, the nitric acid is protonated to form nitric acidium nitrate, which is a more reactive electrophile. This electrophile then attacks the aromatic ring, resulting in the formation of a nitro group.<\/p>\n<p>The reaction of nitric acid with anthracene in the presence of acetic anhydride is shown below.<\/p>\n<p>$$\\ce{C14H10 + HNO3 + Ac2O -&gt; C14H9NO2 + H2O + AcOH}$$<\/p>\n<p>The product of this reaction is 9-nitroanthracene.<\/p>\n<p>The other options are incorrect because they do not involve the use of a dehydrating agent. In the absence of a dehydrating agent, the nitric acid is not as reactive and the reaction is not as efficient. This results in the formation of a mixture of products, including 9-nitroanthracene, 1-nitroanthracene, and 2-nitroanthracene.<\/p>\n<p>Nitric acid and ethyl alcohol can be used to nitrate aromatic rings, but the reaction is not as efficient as the reaction with acetic anhydride. This is because ethyl alcohol is not a strong enough dehydrating agent.<\/p>\n<p>Nitric acid and acetic acid can also be used to nitrate aromatic rings, <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> but the reaction is even less efficient than the reaction with ethyl alcohol. This is because acetic acid is not a strong enough dehydrating agent and it also competes with the aromatic ring for the nitric acid.<\/p>\n<p>Nitric acid in excess can also be used to nitrate aromatic rings, but the reaction <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> is not as selective as the reaction with acetic anhydride. This is because nitric acid in excess can nitrate both the aromatic ring and the side chains.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Join Our Telegram Channel Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The product, 9-nitroanthracene is obtained from anthracene by the action of A. Nitric acid and acetic anhydride B. Nitric acid and ethyl alcohol C. Nitric acid and acetic acid D. 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