{"id":19910,"date":"2024-04-15T05:45:52","date_gmt":"2024-04-15T05:45:52","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=19910"},"modified":"2024-04-15T05:45:52","modified_gmt":"2024-04-15T05:45:52","slug":"match-the-compounds-p-s-with-their-carbonyl-stretching-frequencies-cm-1-i-vi-in-ir-spectroscopy-p-acetone-i-1870-q-ethyl-acetate-ii-1800-r-acetamide-iii-1740-s-acetyl-chloride-iv-1700-v-16","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/match-the-compounds-p-s-with-their-carbonyl-stretching-frequencies-cm-1-i-vi-in-ir-spectroscopy-p-acetone-i-1870-q-ethyl-acetate-ii-1800-r-acetamide-iii-1740-s-acetyl-chloride-iv-1700-v-16\/","title":{"rendered":"Match the compounds P-S with their carbonyl stretching frequencies (cm-1) I-VI in IR spectroscopy. P. Acetone I. 1870 Q. Ethyl acetate II. 1800 R. Acetamide III. 1740 S. Acetyl chloride IV. 1700 V. 1660 VI. 1600 A. P-IV, Q-III, R-I, S-VI B. P-III, Q-VI, R-V, S-II C. P-IV, Q-III, R-V, S-II D. P-II, Q-V, R-III, S-VI"},"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_6a9921d37f618\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    P-IV, Q-III, R-I, S-VI                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    P-III, Q-VI, R-V, S-II                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    P-IV, Q-III, R-V, S-II                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    P-II, Q-V, R-III, S-VI                <\/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 C. P-IV, Q-III, R-V, S-II.<\/p>\n<p>The carbonyl stretching frequency is a characteristic absorption band in the infrared spectrum of carbonyl compounds. The frequency of the absorption band depends on the structure of the carbonyl compound. In general, the carbonyl stretching frequency decreases as the electron density in the carbonyl group increases.<\/p>\n<p>In acetone, the carbonyl group is attached to two carbon atoms. The electron density in the carbonyl group is therefore relatively low, and the carbonyl stretching frequency is high. The carbonyl stretching <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> frequency of acetone is typically around 1870 cm-1.<\/p>\n<p>In <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> ethyl acetate, the carbonyl group is attached to a carbon atom and an oxygen atom. The electron density in the carbonyl group is therefore higher than in acetone, and the carbonyl stretching frequency is lower. The carbonyl stretching frequency of ethyl acetate is typically around 1800 cm-1.<\/p>\n<p>In acetamide, the carbonyl group is attached to a carbon atom and two nitrogen atoms. The electron density in the carbonyl group is therefore much higher than in acetone or ethyl acetate, and the carbonyl stretching frequency is even lower. The carbonyl stretching frequency of acetamide is typically around 1740 cm-1.<\/p>\n<p>In acetyl chloride, the carbonyl group is attached to a carbon atom and a chlorine atom. The electron density in the carbonyl group is therefore very low, and the carbonyl stretching frequency is very high. The carbonyl stretching frequency of acetyl chloride is typically around 1700 cm-1.<\/p>\n<p>Therefore, the correct match of compounds P-S with their carbonyl stretching frequencies I-VI in IR spectroscopy is C. P-IV, Q-III, R-V, S-II.<\/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>Match the compounds P-S with their carbonyl stretching frequencies (cm-1) I-VI in IR spectroscopy. P. Acetone I. 1870 Q. Ethyl acetate II. 1800 R. Acetamide III. 1740 S. Acetyl chloride IV. 1700 V. 1660 VI. 1600 A. P-IV, Q-III, R-I, S-VI B. P-III, Q-VI, R-V, S-II C. P-IV, Q-III, R-V, S-II D. 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P. Acetone I. 1870 Q. Ethyl acetate II. 1800 R. Acetamide III. 1740 S. Acetyl chloride IV. 1700 V. 1660 VI. 1600 A. P-IV, Q-III, R-I, S-VI B. P-III, Q-VI, R-V, S-II C. P-IV, Q-III, R-V, S-II D. 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P. Acetone I. 1870 Q. Ethyl acetate II. 1800 R. Acetamide III. 1740 S. Acetyl chloride IV. 1700 V. 1660 VI. 1600 A. P-IV, Q-III, R-I, S-VI B. P-III, Q-VI, R-V, S-II C. P-IV, Q-III, R-V, S-II D. 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