{"id":19912,"date":"2024-04-15T05:45:54","date_gmt":"2024-04-15T05:45:54","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=19912"},"modified":"2024-04-15T05:45:54","modified_gmt":"2024-04-15T05:45:54","slug":"on-heating-with-dilute-sulphuric-acid-naphthalene-1-sulphonic-acid-gives-predominantly-a-naphthalene-b-naphthalene-2-sulphonic-acid-c-1-naphthol-d-2-naphthol","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/on-heating-with-dilute-sulphuric-acid-naphthalene-1-sulphonic-acid-gives-predominantly-a-naphthalene-b-naphthalene-2-sulphonic-acid-c-1-naphthol-d-2-naphthol\/","title":{"rendered":"On heating with dilute sulphuric acid, naphthalene-1 sulphonic acid gives predominantly A. naphthalene B. naphthalene-2-sulphonic acid C. 1-naphthol D. 2-naphthol"},"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_6a993de205e56\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    naphthalene                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    naphthalene-2-sulphonic acid                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    1-naphthol                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    2-naphthol                <\/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. naphthalene.<\/p>\n<p>Naphthalene-1 sulphonic acid is a substituted naphthalene with a sulfonic acid group attached to the 1-position of the naphthalene ring. <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                   <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>  <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> When heated with dilute sulfuric acid, the sulfonic acid group is deprotonated, leaving behind a positive charge on the naphthalene ring. This positive charge is then stabilized by resonance with the naphthalene ring, resulting in the formation of naphthalene.<\/p>\n<p>Naphthalene-2-sulphonic acid is a different compound with the sulfonic acid group attached to the 2-position of the naphthalene ring. When heated with dilute sulfuric acid, the sulfonic acid group is deprotonated, leaving behind a positive charge on the naphthalene ring. However, this positive charge is not as stable as the positive charge on naphthalene-1 sulphonic acid, because it cannot be stabilized by resonance with the naphthalene ring. As a result, naphthalene-2-sulphonic acid is less likely to be formed than naphthalene.<\/p>\n<p>1-naphthol and 2-naphthol are both derivatives of naphthalene with hydroxyl groups attached to the 1- and 2-positions of the naphthalene ring, respectively. When heated with dilute sulfuric acid, the hydroxyl groups are protonated, leaving behind negative charges on the naphthalene rings. These negative charges are not as stable as the positive charge on naphthalene, because they cannot be stabilized by resonance with the naphthalene ring. As a result, 1-naphthol and 2-naphthol are less likely to be formed than naphthalene.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>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":[688],"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>On heating with dilute sulphuric acid, naphthalene-1 sulphonic acid gives predominantly A. naphthalene B. naphthalene-2-sulphonic acid C. 1-naphthol D. 2-naphthol<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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