{"id":4817,"date":"2024-03-05T16:12:38","date_gmt":"2024-03-05T16:12:38","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=4817"},"modified":"2024-03-05T16:12:38","modified_gmt":"2024-03-05T16:12:38","slug":"peeling-of-onions-causes-tears-as-onions-release","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/peeling-of-onions-causes-tears-as-onions-release\/","title":{"rendered":"Peeling of onions causes tears as onions release"},"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_6a97692670d59\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Sulphonic acid                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"true\">\r\n                    Sulfenic acid                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Amino acid                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Carbolic acid                <\/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 (b), sulfenic acid.<\/p>\n<p>Onions contain a sulfur-containing compound called alliin. When an onion is cut or crushed, an enzyme called allinase converts alliin into allicin, which is responsible for the <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      <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>   <\/a>\r\n    <\/div> onion&#8217;s characteristic odor. Allicin is also a powerful irritant that can cause the eyes to tear.<\/p>\n<p>The sulfur in allicin reacts with water to form sulfenic acid, which is the compound that actually causes the tears. Sulfenic acid is a strong acid that can irritate the eyes and cause them to water.<\/p>\n<p>The other options are incorrect. Sulphonic acid is not a compound that is found in onions. Amino acids are the building blocks of proteins, and they are not known to cause tears. Carbolic acid is a type of phenol, and it is not known to cause tears either.<\/p>\n<p>In addition to sulfenic acid, onions also contain other compounds that can irritate the eyes, such as syn-propanethial-S-oxide. These compounds can cause the eyes to water, burn, and itch.<\/p>\n<p>If you are sensitive to onions, you can take steps to reduce the amount of irritation they cause. For example, you can wear goggles when you cut onions, and you can cook them in a well-ventilated area.<\/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>Peeling of onions causes tears as onions release<\/title>\n<meta name=\"description\" content=\"Onions contain a sulfur-containing compound called alliin. When an onion is cut or crushed, an enzyme called allinase converts alliin into allicin, which is responsible for the onion&#039;s characteristic odor. Allicin is also a powerful irritant that can cause the eyes to tear.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/peeling-of-onions-causes-tears-as-onions-release\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Peeling of onions causes tears as onions release\" \/>\n<meta property=\"og:description\" content=\"Onions contain a sulfur-containing compound called alliin. When an onion is cut or crushed, an enzyme called allinase converts alliin into allicin, which is responsible for the onion&#039;s characteristic odor. Allicin is also a powerful irritant that can cause the eyes to tear.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/peeling-of-onions-causes-tears-as-onions-release\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-05T16:12:38+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Peeling of onions causes tears as onions release","description":"Onions contain a sulfur-containing compound called alliin. When an onion is cut or crushed, an enzyme called allinase converts alliin into allicin, which is responsible for the onion's characteristic odor. Allicin is also a powerful irritant that can cause the eyes to tear.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/peeling-of-onions-causes-tears-as-onions-release\/","og_locale":"en_US","og_type":"article","og_title":"Peeling of onions causes tears as onions release","og_description":"Onions contain a sulfur-containing compound called alliin. When an onion is cut or crushed, an enzyme called allinase converts alliin into allicin, which is responsible for the onion's characteristic odor. Allicin is also a powerful irritant that can cause the eyes to tear.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/peeling-of-onions-causes-tears-as-onions-release\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-03-05T16:12:38+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/peeling-of-onions-causes-tears-as-onions-release\/","url":"https:\/\/exam.pscnotes.com\/mcq\/peeling-of-onions-causes-tears-as-onions-release\/","name":"Peeling of onions causes tears as onions release","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2024-03-05T16:12:38+00:00","dateModified":"2024-03-05T16:12:38+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Onions contain a sulfur-containing compound called alliin. When an onion is cut or crushed, an enzyme called allinase converts alliin into allicin, which is responsible for the onion's characteristic odor. 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